Product: Debt collection

When we called to cancel the XXXX service, we had to call several times to try to get our service fixed because we were having issues with the system. The alarm was activating and doing noises during the early morning and not letting us sleep during the night. some technicians came several times to try to fix the problem did not get fix. We were tired of the bad service and decide to cancel the service with XXXX. We also called " XXXX XXXX '' because we were concern about what was going to happened to the devices in our house because we knew that those devices were not ours and that we needed to give them back. Well, after we call " XXXX XXXX '' they said that they did not want them because the were not worth for them and that we did not have to give them back. After this we called again XXXX because they again said that we needed to pay the service because we did not justify the cancellation, but we again repeat to them that the service was not working and as they sent many technicians to our house and did not solve the problem, we did not have any responsibility of this bad service. Well, everything was clear we talked to them, and they said everything was clear we did not owe them anything because the technicians could not solve the problem and we cancel after the XXXX visit of a technician. After about 6 months, we receive a bill and we called " XXXX XXXX '' to ask why we were receiving this bill. They said that they could not solve the problem that we have to call a phone number which they provided and then we call. When we called this number, a third party called " HDA '', we tried to explain our issue, but what we receive were insults and threats. The representative talk to me aggressively and disrespectful. This representative threatened me that if I did not pay this bill my credit will be ruined and that it was my fault because I did not read the contract, he said. He also offended me meaning that i have the fault because I did not read the contract which I did because I called several times when I had the issue with XXXX and XXXX XXXX to let them know what was going on and that after I cancel, again, I called XXXX XXXX to let them know they that I cancel the contract with XXXX and that they need to pick up the devices in my house. This person described himself as the supervisor and I can not believe that a supervisor can talk to a customer as how he did. Then i called again to XXXX XXXX and they told me the same thing again that i have to talk to the number they provided me to solve the problem. Well I decided to talk again to this number or third party XXXX XXXX provided me called HDA, the representative that took my call this second time that i called the same day, the representative took my phone number to look up my account and i felt till the person saw my name in the system did not even ask me anything, the representative just transfer me right away with the same person i talked in the first time i called and was the same person " the supervisor '' that I just talk to him to explain and he said asking my name and I did not even have to provided he knew it. This means that he put a note to everyone there or all representative to transfer my call to him, so he can manage it and talk to me so rude and to talk to me like he does not have any respect for anyone.