We are sorry to hear that. There are a couple of scenarios that could have triggered the error message.
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The first possible scenario is that there was a mistype in one of the email addresses that you entered, or you forgot to put commas between multiple emails to separate them.
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To eliminate confusion over what occurred, we recommend that you go back and enter each email address one at a time, clicking ‘send’ after each one rather than typing them all at once.
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If you are still having problems using the email referrals, we recommend sharing your unique referral link with your friends instead. Please contact us here if you need further assistance.