I received a call from XXXX XXXX XXXX asking if I wanted to switch to Uverse that it was better and that there was no charge or interruption of service. I received a new modem in the mail and after connecting it found out it was defective. I was directed to an XXXX office in XXXX, CA to exchange the Modem. Went to the store and was told that I was given the wrong information and had to send it back ( mail ) to exchange it for a working XXXX which I did. After about 20 days the system was up and running. Got a collection call several months afterword 's, I contacted XXXX XXXX XXXX who told me it was an error and that they would correct it. A year later I am starting to get collection calls and letters trying to collect the same account again. I called XXXX XXXX XXXX ( XXXX XXXX, XXXX XXXX XXXX, XXXX XXXX XXXX, XXXX XXXX - would not give his last name ) and basically was told that either they could not find the account or that they could not do anything about the account because they had sold it and that I would have to work it out with the collection company. I had and still have the same service with XXXX XXXX XXXX with no interruptions in service.