Sim Local Coupon ESIMDISCOUNT10 is a manually entered code that takes 10% off your order at simlocal.com, typed into the discount or coupon field at checkout. It is a flat rate rather than an "up to" ceiling, so the arithmetic never needs interpreting: whatever your basket comes to, you pay 90% of it. This walkthrough is about the mechanics — where the field sits, what order to do things in, what the total should look like once the code has landed, and what to try when the field refuses it.
Before you open the checkout page
Most failed code redemptions are not really code problems. They happen because the basket was assembled in a way that made the discount awkward to apply, or because the buyer paid before checking the total. Two minutes of preparation removes almost all of that risk.
Start by deciding on the plan itself, independently of the code. Sim Local sells single-destination eSIMs, multi-destination eSIMs, unlimited plans, plans that include calls and texts, and plans aimed at students, across what the company advertises as more than 200 destinations and more than 150 countries on local networks, with 5G where available. Pick the data allowance and duration that actually match your trip first. A 10% reduction on the wrong plan is a worse outcome than full price on the right one.
Then decide whether you are buying one eSIM or several. Because the discount is proportional rather than capped, a single order containing several eSIMs — a family, a group, a multi-country itinerary — gets more absolute value out of the same 10% than several separate small orders would each get on their own. If you know you need more than one, build the basket once.
Finally, have the code somewhere you can type it from rather than paste it from. That sounds fussy, but pasted strings are the single most common reason a valid code appears to be invalid.
The redemption sequence
Go to simlocal.com and choose your destination, then select the plan whose data allowance and duration fit the trip.
Add that plan to the basket. Add any additional eSIMs you intend to buy in the same order now, before you move to payment.
Proceed to checkout and locate the discount or coupon field. On many stores this sits near the order summary and is collapsed behind a link you have to click open, so look for a small "have a code?" style prompt rather than expecting an open box.
Type ESIMDISCOUNT10 into the field exactly as written, with no leading or trailing space.
Submit the code — press the apply or arrow button rather than typing it and moving straight on to the payment fields. An unsubmitted code is simply text sitting in a box.
Check that the order total updates before you pay. A 10% reduction should appear either as its own line in the summary or as a changed total.
Complete payment, then open the confirmation email and confirm the figure there matches what you were actually charged.
That is the whole process. There is no card to activate, no voucher balance to track and no separate certificate to redeem. The code is a string you type, and it reduces the price before payment.
What a successful redemption looks like
You are looking for one thing: the total drops to 90% of what it was. Because the rate is flat, you can verify it in your head. A basket at 90% means you have knocked off a tenth, so mentally divide the pre-discount total by ten and check that the difference matches. If the summary shows a discount line, it should equal that tenth. If it shows only a revised total, the revised total multiplied back up by the same proportion should return you to where you started.
Sim Local publishes "from" prices on its homepage, which are the cheapest plan for each destination, with larger allowances costing more. Running the flat 10% against a few of those entry points shows what a correct result looks like at the small end:
UK 20GB from $13.50 becomes about $12.15 at 90% of the starting price
US 3GB from $7.25 becomes about $6.53
Japan from $13.00 becomes about $11.70
Thailand 3GB from $5.75 becomes about $5.18
France 1GB from $4.00 becomes about $3.60
Germany 1GB from $4.00 becomes about $3.60
Canada 1GB from $5.00 becomes about $4.50
Those are entry points rather than typical baskets, and the honest reading is that on the cheapest single-country plans the saving is a matter of cents. The point of listing them here is calibration: if your basket is near one of those figures and the discount line looks dramatically larger or smaller than a tenth, something other than this code is in play and it is worth reloading the checkout and starting again.
When the field rejects the code
Work through these in order. The first three fix the large majority of cases.
Clear the field completely and retype the code by hand. Copy-and-paste frequently carries a trailing space, which many checkout fields treat as part of the string.
Check for autocorrect interference. On phones and tablets, keyboards sometimes capitalise unpredictably or insert a space inside a long unbroken string. Turning off predictive text for the entry, or typing slowly and reading the field back before submitting, resolves this.
Check whether a browser extension has already inserted a different code into the field. Coupon extensions often populate discount boxes automatically, and the box may look empty while holding something else. Disabling extensions for the checkout page and reloading gives you a clean field.
Reload the checkout in a normal, non-private window with the basket intact, then reopen the discount prompt and try once more.
Try the website checkout rather than the app. Whether the code also works inside the Sim Local app is not something to assume, and the website is the safer route.
If the code still will not apply after that, stop troubleshooting and treat the checkout total as the answer. You will know before you pay, and you can decide whether the plan is worth buying at full price on its own merits. Do not complete the payment expecting the discount to be added retrospectively.
Do not confuse this code with the referral benefit
Sim Local runs a separate refer-a-friend scheme, and it is easy to mistake one for the other because they share the same headline number. Under that scheme, the person doing the referring earns US$5 for each friend, and the referred friend gets 10% off a first purchase on a minimum order of £/€/$20. That benefit is applied automatically at checkout, arrives through a link rather than something you type, and can be used once.
ESIMDISCOUNT10 is the other kind of mechanism: a code the customer enters. Nothing here should be read as saying the two combine, or that they exclude each other. Practically, the difference matters during redemption for one reason — if you arrived via a referral link and see a reduction already applied before touching the discount field, that reduction is not this code. And the £/€/$20 minimum belongs to the referral scheme; it should not be read across to this code.
Terms the checkout will answer for you
A good deal about this code is simply not published, and guessing is worse than saying so. Whether it applies to every plan type — unlimited, calls-and-texts, student, multi-destination — is not stated. Nor is any minimum spend, expiry date, first-order-only restriction or per-customer limit. Sim Local does describe its own discount codes as single-use and applied at checkout, but that statement comes from the referral page and should not be assumed of this code.
This is exactly why step six of the sequence above matters more than any research you could do in advance. The checkout total is the test. If the code applies to your basket, the total drops by a tenth. If it does not, nothing has been lost.
After payment: delivery, activation and the refund window
Delivery is digital. The store describes one-click downloads in the Sim Local app, with activation taking a couple of minutes, and apps exist for both iOS and Android. So once payment clears, the product is effectively in your hands — which means the next decision is about timing rather than logistics.
Sim Local says that if you have not activated your eSIM, you can request a full refund within 14 days of purchase, which it calls "No Quibble Refunds". Once the eSIM is activated it is considered used and is no longer eligible for a refund; activation also waives cancellation rights under consumer law, and the policy page references the EU Consumer Rights Directive on this point. There is one exception in the customer's favour: if the eSIM could not be activated because of a technical issue on Sim Local's side or the network's, the store says it will refund even outside the 14-day window.
The practical consequence for anyone redeeming a code is worth spelling out. If your travel dates are still soft, buy the plan, apply the code, and leave activation until you land. Holding an unactivated eSIM keeps the refund door open; installing and switching it on closes it. Refund requests go by email to customerqueries@simlocal.com with the order number and the email address used for the purchase, and refunds take five to ten business days depending on the bank.
Where to get help mid-redemption
If something goes wrong at the checkout stage, support runs through 24/7 messaging on WhatsApp, email at customerqueries@simlocal.com, a Zendesk help centre and in-person help at the airport stores. The store says tickets are typically answered within 24 hours. That combination is unusual for this category: Sim Local is an Irish retailer, legally Sim Local (Ireland) Ltd, and it is not a website-only business — it runs physical stores in airports alongside the site and its apps, and says it has served 4 million customers worldwide. There is also a price-match promise page covering UK eSIM deals, with the store advertising a price match on UK plans.
For a code as simple as this one, though, the walkthrough is usually enough. Build the basket, open the discount prompt, type the string by hand, submit it, watch the total fall to 90%, and judge the plan on its post-discount price rather than on the percentage.
Promotional terms, eligibility and values are set by the provider and can change at any time. Always confirm the current terms on the official site before signing up or completing a purchase.