I recently gave my Unlocked (AT&T) iphone 6 to my girlfriend. I restored it and setup as a new phone... When I go to "Wallet" and click "add card," a bubble pops up and say "Card could not be added. Please try again later or contact the card issuer for more information." (This is without me even entering any card information..) If ANYONE can help me I would appreciate it. I got her the apple watch too so it would be nice if she could use the apple pay function... I absolutely do not know what to do... Also anyone know the APN settings to get LTE to work for Simple Mobile (they run on the T-mobile network) - maybe need an updated sim ?