You top up your Fee Balance from your main CC balance. As long as you hold CC in your wallet, there is nothing else to buy or set up.

The top-up runs in the background. You do not have to wait on the screen for it: you can carry on, and it appears in your history when it completes.

It depends on how often you transact. Occasional use needs very little. If you transact frequently, or you build on the SDK, keep more in reserve.

A good rule: top up before you reach warning. If you fall to critical, your next action is blocked until you add more.

If you connect to apps through the wallet, keep a larger cushion. Some connected transactions cannot be estimated in advance, so the wallet cannot warn you as precisely there.

Once CC is credited to your Fee Balance it stays there. It cannot be moved back to your main balance, and it cannot be refunded.

So top up what you expect to use rather than moving your whole balance across. You can always add more later, and there is no advantage to holding a large Fee Balance.

Yes, a small one. The top-up is itself a transaction on the network, so it carries its own network fee. You see it before you confirm.

Your first top-up may have that network fee covered by a one-time credit. Where it applies, the top-up screen shows it.

The wallet tries to keep topping up available to you, by stopping you before you spend down past what a top-up costs. It does not always manage it. If it did not, the next section is for you.

This can happen. If your Fee Balance has fallen below the cost of a top-up, you cannot fix it from inside the wallet, and retrying will not change anything.

Message us from this page, or write to support@looptech.io, with your party ID. We credit your Fee Balance by hand and you carry on from there. There is no charge for it.

Nothing is at risk while you wait. Your main balance is untouched. What you cannot do is submit new transactions, and accepting an incoming transfer by hand is itself a transaction, so money sent to you waits rather than arriving. Transfers covered by one-step transfers are the exception: those land on their own and are not affected.

Your party ID is at the top of your wallet, with a copy button beside it.

If crediting fails, we retry it automatically. You do not need to sign again. If it still fails after that, your CC is returned to you.

After a transaction, the balance takes a few seconds to refresh while the transaction settles on the ledger. After a top-up it updates as soon as the top-up executes.

If it still looks wrong after a minute, message us from this page or write to support@looptech.io.