When I try to add an app they wante to verify payment method. When I do, they say info does not match my bank. I have done this 20 times with same result. How can this be corrected?
Obviously, there's a discrepancy between what you're providing and what Apple is getting when they verify with the bank... Until you can get that figured out, you could get a iTunes gift card of a small amount to put on the account and will bypass the need to verify credit card details until you get it worked out.