@0xMoses you are required to fix this or refund him, anything you code or do, must work for at least 2 weeks, you can't count this as a modification, this should be a fix to something that broke 24 hours within his purchase, no extra fee should be charged whatsoever.
I worked for that update, and I don't see any reason to refund or any reason in that rule, it is not his fault Spotify updated its API, nor is it mine.
I will not refund.
@Lucas