Product: Debt collection

Found out during a Credit Report that i was in collections over a disputed debt from XXXX XXXX XXXX  back in XX/XX/XXXX Was never notified the debt was ever turned over to collections. Had multiple conversations with XXXX XXXX XXXX over the debt. I received a letter in XX/XX/XXXX stating Sequium Asset Solutions was attempting to collect the disputed debt. I responded to them via their website on XX/XX/XXXX. I received a response stating please allow up to 3 business days for a response. I got nothing from the company, so i sent another response via their website on XX/XX/XXXX and again got no response. So I sent a email to the company on XXXX XXXX. XX/XX/XXXX i finally go a response. they obviously did not read anything i had sent because they attempted to explain my debt to me. I had previously explained that the debt was not mine and it was a mistake that XXXX XXXX XXXX  made with XXXX and i never received the services they were charging for. We had a bundle with home phone, internet and XXXX XXXX with XXXX XXXX XXXX. After we canceled the XXXX XXXX XXXX stated they had already sent the payment to XXXX and we were responsible for that payment. We never had a contract with XXXX so all payments always went to XXXX XXXX XXXX. When we discussed this with XXXX XXXX XXXX they asked us to just pay the bill and then XXXX would issue us a gift card for the {$73.00}. I told them they made the mistake, we canceled the service and they should go to XXXX themselves and get the credit. We went back and forth with them for several months and then never heard anything till Sequium sent the letter. I have since contacted Sequium multiple times via email with no response. I have asked that this be removed from my credit report and i have gotten no response from the company. I took this very seriously as i have excellent credit and always pay my debts. This company is terrible at communication. I followed the steps they put in the letter to dispute the debt via their portal on the webpage and got no where, then i finally got a email response after my 3rd communication with the company. I immediately responded and have not heard anything i over a month. Extremely poor communication by this company, but extremely quick to put a mark against my credit. i originally filed this complaint on XX/XX/XXXX and received the response from the Sequim on XX/XX/XXXX. The response is a complete joke, they still are unwilling to look at the facts. They now say my account has been placed on a cease and desist list? How many people have to deal with this companies tactics? I am refiling this complaint with addition documents, one is a email dated XX/XX/XXXX showing a disconnect date of XX/XX/XXXX, which is still wrong we disconnected in XXXX  XXXX. That email sent to us in response to a email we sent XXXX XXXX XXXX in XXXX asking what to do with all the equipment. In that email we originally reached out to cancel the service on XX/XX/XXXX. The second document is the actual bill from XXXX XXXX XXXX showing the XX/XX/XXXX cancelation on some of the services and the XXXX XXXX portion they are trying to collect for service dated XX/XX/XXXX till XX/XX/XXXX. This is not a debt i owe