Switched emails for verification on payment

My Small Giant account is set up under this email. The verification password is for/on this account email account You have wrong email
wrong email. Also, for the last 4 to 5 days and I have not been able to make any purchases. I’ve all ready checked Google and everything is set up properly. I’m able to make purchases in other in app games. Yours is the ONLY problem, please help and fix.

Mod edit showing email …

I think only in game support can help you.
Try contacting them.