The exact, current process for card redemption. Some cards require invasive apps to be installed, some are physical and need a mailing address, some require a manager, etc. Users could probably keep this updated with feedback.

nostr:nprofile1qqs06juvrw2txquvwshq9dzjffuzef294u7f55ttll02me4x8cx3q8cpp3mhxue69uhkyunz9e5k7qg4waehxw309ajkgetw9ehx7um5wghxcctwvsqs6amnwvaz7tmwdaejumr0ds7jtnxf has pretty good instructions on each page, for what it's worth. User reports would make it even better.