I just found an iPhone 6S on eBay, but it says that it is with the network "Telma South Africa LOCKED". I have ATT. My question is this: can I purchase the phone and unlock it to work with ATT? I really hope so, because it's a great deal if I can. Here is the link if it helps: http:// I selected iPhone 6S, Telma South Africa LOCKED, 16GB, Space Gray, and Fair. Thank you for your help!