This report will probably be seen as the kid reminding the teacher homework was due, but there is an accidental exploit on the Switch guild store.
I don’t have a screenshot, but I do have transaction history showing the largest guild store offering was purchased twice. I initially received an error when purchasing, so I went back to buy again. After the second time, the normal transaction messages appeared, and the option showed the “you already purchased this” text.
I used the orb of clans as normal, but when I checked my e-mail I noticed I was billed twice and received the offer twice. I’m not sure how to replicate, but I’m guessing there may have been some one-time lag that resulted in this bug. (I’ve purchased this offer multiple times previously with no issue.)
Since I (accidentally) used the purchased goods, there’s no need for any sort of refund, but I’d rather be on the safe side and report. Thanks!