Hi guys, I've used the search but couldn't find an answer and hope you can help me. I'm from Europe, but live in the US this year. I move back to Europe at the end of November. I have an ATT GoPhone simcard. When registering for that, I didn't have to provide my SSN (I do have one). Now if I want to preorder the iPhone X, I need to enter the last 4 digits of my SSN in order to verify my ATT account. When I enter '0000' it doesn't work. When I enter the actual last 4 digits of my SSN it also doesn't work. What to do? Can I just go to Verizon (I'd prefer the GSM + CDMA version) and get a contract for just 1 month? I don't mind paying a few bucks if that means that I can get it at launch. Thanks!