I'll playback pretty much the conversation I had this morning when I answered my mobile phone to someone from T-Mobile
T-Mobile : Hi, this is xx from T-Mobile, how are you?
Me : I'm thanks you?
T-Mobile : I'm well thank you for asking. I'm ringing to let you know about some offers you are eligible for as a T-Mobile customer
Me : Err..I cancelled my T-Mobile contract about 2 weeks ago, in fact my final bill just arrived this morning
T-Mobile : Oh yes I can see that here. Can I ask why you left T-Mobile?
I assumed that was a rhetorical question