Mobile service is terrible, customer service terrible, no pro rating--never use T-Mobile
NEW YORK -- T-Mobile is a terrible cell phone company. If there is a mountain anywhere around, you won't get service. I live in upstate New York, and the connections don't work for most of the area in NY state and for large areas of Pennsylvania, Massachuetts, Vermont, and Connecticut. Furthermore, when I stopped service, I was charged for a full month of service even though I used only 5 days of service. They do no pro-rating at all. Whenever there was a problem with the company, they would take days to fix it, and I had to make many calls. Requests were ignored. Data was charged though it was not ordered. They appear to be scam artists as well.
NEVER USE THIS COMPANY. DISSUADE YOUR FAMILY AND FRIENDS FROM USING IT.