I will never, EVER use Tmobile.  EVER.  (yes, disgruntled).  I had to cancel early due to moving and having absolutely NO coverage in my new location.
Suddently, the early termination fee more than doubled for each of our phones.  When I asked to speak to a supervisor, was told the guy I'm talking to was one.  When I asked to speak to his boss, was told he's not available, but his name was "Fred"  I asked for the last name, was specifically told that "Fred" has no last name.
I HATE Tmobile with a passion, and repeatedly hope they go out of business in shame.