When trying to log into email A, I am told to verify using email B. When logging into email B, I am told to verify using email A. This is a loop that Yahoo should prevent from happening.
For my personal case... Yahoo+ Support is unable to help - yet it is apparently the only option to fix this problem. My backup email appears to not be the verification email I used, and I am at a loss of what it is. And their other verification process was unable to verify my identity for some reason unknown to me.
If Yahoo is going to create a system that provides this loop to happen, please provide a way out of it. (Preferably free since this is not an issue the customer created)