I have been a Cingular customer for almost 11 years (it will be 11 years in september) I am here to tell you that cingular customer service is the worse. as soon as my refinancing of my house goes thru I am switching to VERIZON. I do not know about T-Mobile. but stay away from cingular even if you have to use tin cans and a string. I talked to a Mr. Martin in the office of the president of cingular and i told him my complaints. also told him that I will be switching to VERIZON WIRELESS. CINGULAR CAN YOU