Only a few months back, in our second year of service agreement, we found on our bills some sneaky charges on phone equipment warranty even though we never ordered the warranty. I had to call to complain before they removed the charges.

A few months after we signed our service contract, the agent told us that we could switch from the Five Faves option to an any-time minute option and save, but she didn't tell us that there would be a service charge of some $70 for the switch!

More recently, we ordered a web-access service for one of our three family lines. The agent offered to give us one month of free web access service for the other two lines. We thought this offer was only for one month of service, and was free. So we accepted it. Little did we know that it was actually a long-term service, just free for the first month. We were conned into believing that it was for only one month. We wound up being charged for two months of service for two lines for something we didn't even know we had. Consumers Report rated T-Mobile service as high, but my experience has been that it is definitely the worst of all. They give you sneaky, incomplete information to trap you and hit you with unexpected charges.