Hello guys, I have an iPhone 4 which is locked to vodafone UK since I signed a pay monthly contract with them for two years. A few weeks ago, my phone had some issues. I paid a visit to an Apple Store and it was replaced with another phone. I'll be spending a few months in another country and I'd like to continue using my phone while I'm abroad. Since my phone was replaced, is my replacement phone still locked to vodafone UK? Thanks.