I currently have an iPhone 7 Plus with T-Mobile, and I've got JUMP on Demand. For the last two releases, I've been able to get my phone on launch day by ordering online. However, T-Mobile's coverage has declined at my house and at my job, and Verizon has superb coverage at both. Therefore I plan to switch over to Verizon, but how do I go about doing that? I went to the store Saturday and I was told that I wouldn't be able to preorder the new iPhone, so what should I do? Should I try to line up at the store early on the morning of the release and try to get my hands on a new iPhone? I'd appreciate any suggestions and tips. Thanks!