I'm looking into buying a Galaxy S4 on verizon over the summer, as part of my family plan. I'm also going to be studying in the UK for the next few years, spending about half my time in England. I was looking at sim card monthly plans like these from t-mobile and was wondering if those would work with the verizon s4 in England. Would my number change? Would I be able to disable using verizon roaming? Anything else I should know about?