I currently have the same exact problem as you.
I have coverage at my home only. Once I leave my home there is no coverage. I am in Real Estate and need coverage in the City in which I do business, Tyler, Texas Pop. 120K+ I was assured before choosing T Mobile that the coverage in my area was GREAT! It does not work 3 blocks from my house!!!
They want $200 to release me from my contract. Sorry! No service- still I pay?
I already have another provider, and will use my $35.00 a month minutes with T Mobile on personal long distance calls until the end of my contract.
I will not pay them for NO SERVICE and deceptive trade practices!
Also- I plan to make sure that each day I speak with someone in business - and there are 1300 Agents in my area - that they know all about T-Mobile and there business practices.
Robin Kelly, Realtor®