So, I recently moved to a new home. Changed all my banking account addresses, updated my contact card in iOS, and deleted my old billing address in Apple Pay and added my new address. My billing information is also updated on my Apple ID. After that point, I started getting Apple Pay Errors when trying to pay. The errors are due to an incorrect billing address. So I go and check my Apple Pay settings and I find my old billing address is in the settings along with my new address, but it's my old address that is selected (check marked). So I delete, again, my old address and select my current address. It goes away when I do that, but when I back out and go back into that card's settings, my old address has reappeared and is sometimes selected instead of my current address. I've searched Bing and Google, and other people have this issue. It seems though no one has figured out a real solution since Apple Pay has been introduced in 2014. So I'm bringing it up here to see if anyone else have had success in eliminating this problem. FWIW, I bank with USAA and have a Costco AMEX in Apple Pay. I also updated from a 6 to 6s a couple weeks ago and the issue transferred over.