Whenever I try to do something like login into my account or changing my gmail id it show contact support and it doesn't help it sends requests on the gmail id whose password I don't remember is there a solution
Unfortunately, I wouldn't know how to help you :(
Change your email address or look at the address check.com has:
Whenever I try to do something like login into my account or changing my gmail id it show contact support and it doesn't help it sends requests on the gmail id whose password I don't remember is there a solution