If you accidentally clicked the "redeem" button in COIN too early, don't worry! You have a few options!
When you request a COIN App Redemption and it has not yet been processed, you are able to cancel that Redeem Request. Please see this article on how to do so.
Make sure you have the right Receiving Wallet address tied to your account before requesting to Redeem. This can be checked by tapping your profile icon in the top left, and tap Account Details. Tap the pencil icon under ERC-20 Address to edit or add in your address.
You can view the full instructions on how to withdraw your COIN earnings here: How to Redeem