Don't think my dentist or barber want to be paid in GameStop gift cards and I feel giving some company with an intentionally obfuscated corporate structure non-refundable tokens in the hope they'll purchase a voucher which according to them may or may not pass Amazon's fraud detection Algo the same as "purchasing a gift card".

Ignoring that, it's still about the farthest thing from a "circular economy" imaginable...

I can't really imagine any motivation for buying milk in this fashion unless I'm seriously into tax evasion. So good luck buying day to day shit with gift cards once you've had to move to El Salvador to evade the IRS... Which is incidentally one of the jurisdictions bitrefill.com is incorporated in.