Product: Debt collection

History : I had discontinued service XX/XX/XXXX on a XXXX XXXX XXXX XXXX XXXX XXXX emailed me XX/XX/XXXX confirming that the service was canceled as requested. The email indicated that I will receive a prepaid return label with packing box to return the equipment. 
I did in fact return it per instructions on XX/XX/XXXX at the XXXX store and I have the original receipt as proof. 
I received an invoice dated XX/XX/XXXX from XXXX for a charge {$210.00} indicating it was a charge for the Internet box, as they did not have record of receiving it. I called XXXX, but unfortunately dont have my notes on who I spoke to. 
XX/XX/XXXX : I called XXXX regarding the invoice and they finally agreed to remove the charges after a lengthy conversation. The supervisor said it would take XXXX XXXX  XXXX business days. Ticket # XXXX. So, at this point I figured I would not get any additional invoices. 
XX/XX/XXXX : I called XXXX as I received a collection letter from XXXX ( XXXX XXXX XXXX XXXX ) This surprised me as I was told on XX/XX/XXXX they would remove the charges. I provided the XXXX Tracking # again, but since its over XXXX days, XXXX does not keep record if it was in fact received. I spoke to XXXX. He assured me it would be taken care of and apologized. He gave me a ticket # XXXX. He said call in XXXX XXXX XXXX  days to see if it was resolved. 
XX/XX/XXXX : I called XXXX and again after XXXX minutes was told they cant find the record of it being returned. I spoke to XXXX. She did agree to remove all charges and that it would take XXXX business days. She said the {$200.00} was for the box, and the {$12.00} was surcharges and taxes which would automatically fall o once they clear the {$200.00} charge. 
XX/XX/XXXX : I called XXXX again as I received another bill from XXXX as well as a collection notice from XXXX. I spoke to XXXX. After a lengthy conversation I was told they will contact XXXX to remove me from collection proceedings, and will continue to investigate on their end where the box is. I told them I do not want another bill, as this was my XXXX call regarding this issue. I said that I oered previously to send the copy of the XXXX receipt showing proof of return of it on XX/XX/XXXX. XXXX, whom is XXXX supervisor will send an email to the warehouse about the device. 
As I said, I did return it, so they said I could take the XXXX receipt to a XXXX Store so then can enter the notes. Also, I would get an email in about XXXX  days about removal of the charges. 
XXXX took the XXXX receipt to the XXXX Store at XXXX XXXX XXXX, XXXX SC. The associate there was great. She called XXXX, said she has the original XXXX receipt from me dated XX/XX/XXXX. She was on the phone with them a long time as well. Finally, I had to leave, as my husband had a home health nurse coming to the house. I told them to resolve it and get back to me. I never heard anything form them, except another invoice from XXXX dated XX/XX/XXXX. 
XX/XX/XXXX : I called XXXX to try yet another time to resolve this, as XXXX XXXX billed me again for {$210.00} dated XX/XX/XXXX. I spoke to XXXX. She said the XXXX was written XXXX I said, I was glad they resolved it She said, no the debt was sold to Diversified Adjustment Services. It then was for {$230.00}. I couldnt believe it. I said do you not have all the notes of all my calls and records that XXXX was going to clear the charges? She said, I have no records, so you need to call Diversified Adjustment Services. She gave me a number of XXXX. I called them, even thought I havent yet received a bill from them. They were able to find the debt that was now theirs to collect. They gave me an account number of : XXXX, with XXXX as the creditor. I told them I want to dispute this, and asked how to do so. He said to go to their website, dasi.net. Then go to consumer tools and click on dispute. So I did that. I uploaded a copy of the XXXX receipt dated XX/XX/XXXX. He asked if I would settle to pay a lower amount. I said there is no way I am paying this, as I have been working on this monthly since XXXX of XXXX. I told him I no longer want texts, nor any bills. I also said that if this doesnt get resolved, Ill have no other alternative but to turn it into my attorney. Once I said that, he would not talk to me and he hung up. My dispute form that I uploaded with the bill also had a free form area where I explained everything, and of course uploaded the receipt. In the free form area I stated I would like confirmation by XX/XX/XXXX that they received my dispute, or will contact my attorney. 
I heard nothing. So I called them again on XX/XX/XXXX. 
XX/XX/XXXX : I called Diversified Adjustment Services, and spoke to XXXX. He pulled up the account by the account number that they assigned to this debt. He said he they did get the dispute, but can not discuss with me since I mentioned an attorney. I told him I did not yet turn them into XXXX, and was hoping to get this cleared up once and for all since I did in fact send them the XXXX receipt. He told me to have an attorney contact them, as they cant talk to me. So I contacted my attorney and they sent a letter to the collection agency. NOW ... they have the {$210.00} on my XXXX Credit Report. My credit has always been good.