@orion34 Hello, I do not see any duplicate order on FastSpring this year. I can only see annual payments since 2020. If you have accidentally subscribed on a different platform such as App Store or Google Play, you will need to request a refund there. Here is how to do it -

Request a refund here:
App Store – https://support.apple.com/en-us/HT204084
Google Play – https://support.google.com/googleplay/answer/2479637?hl=en