Can T-Mobile unlock my iPhone 4S?

Luke

Member
Basically I have taken out a new contract with three but have a couple of months left with T-mobile. So I want to use T-mobile until the contract expires. But if I put my T-mobile sim in the iphone it will lock it. So I want to know in a couple of months will I be able to pay T-mobile to unlock the 4S? If so then how much is it and how long does it take?

Thanks
 
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