cancel two-step verification

@steve_amazonHello,

I'm having an issue accessing my Amazon seller account. I haven't logged into my seller account for a long time, and during this time, I had to change my phone number and the credit card information associated with my Amazon account. Amazon is sending me an OTP number for two-step verification, but I can't access it because my old number is still registered with Amazon. When I try other methods, Amazon sends an email with an OTP code. After entering the OTP code from the email, the system asks for the CVV number of the registered credit card, which I also had to change. I am unable to log into my Amazon account. Please help. What should I do?