I had two inactive stores and I payed for the wrong store. Is there a way I can undo this?
You need to email directly to merchant support.
Contact page: https://help.shopify.com/en/questions#/contact/
Hey, @diceros
It looks like we’ll need to access your account in order to see what we can do for you. While we’re not able to provide account-specific support via the Shopify Community at this time, we’d be happy to continue assisting you through live chat, email, or callback. Please visit our help center and log in to your account to create a support request.
If there is anything else I can help you with, please let me know.