I recently switched my service to AT&T which merged with Centennial wireless. All throughout my three year contract I have had problems getting text messages and calling. I once had no service for three days and had to call them several times before they were able to fix my service. I called and asked about leaving my contract early, but they would not let me without a $250.00 cancellation fee which they would not prorate even with six months left. All other providers I've heard of will. When I finally switched I had the last bill and a, ridiculous, disconnect fee outstanding with Centennial. Recently they decided it was alright to go through the numbers I have called when I had their service and start asking these people for my number. This was a very inappropriate move in my opinion, and embarrassing as well. Calling my friends and family to get a hold of me about an issue unrelated to them is ridiculous and harassing to them. Not only did they completely lose me and anybody I know as a customer, but everyone they called surely won't want the same thing to happen to them. This is extremely bad business practice and lost them a large number of customers as I will continue to post this on any and all sites possible as well as file a better business bureau complaint. When I called to complain about this, I was very rudely talked down to by an associate. When I explained that legally I can tell them they must contact me by mail from now on, she very rudely said "well you have to mail this in writing." And I will be sending this letter out today. I have already complained about Centennial to everyone I know of who was called. I will continue to give the same advice to everyone I speak to about cellular service as well. I have had cellular service with Verizon and AT&T, and never had this sort of ridiculous and disrespectful treatment. Most businesses want you as a customer, not Centennial. Way to go Centennial. At this point I'm willing to spend a great deal of effort to let as many people as possible know about this and all other problems I've had with Centennial. I would not want the same for them.