Two reasons why you would need a refund:
1. If you wanted to upgrade your Prime 50 to Prime Unlimited.
2. You've realised 1tap isn't for you and you want your money back.
In any case - Contact our support at email@example.com
If you've downloaded 1tap Receipts from Apple iTunes store follow their instructions and click here.
If you've downloaded 1tap from Google Play store - follow their instructions and click here.
If you've bought 1tap Receipts subscription through Stripe contact our support at firstname.lastname@example.org within 14 days of your purchase and we will handle your refund.