I looked at my credit report last week and noticed that XXXX had reported that I had an outstanding bill of {$250.00}. I challenged the validity of the bill, especially since I had not been with XXXX for since last XXXX XXXX 2014 XXXX and I had not received any bills stating that I owed any money since I switched XXXX. In addition, I stated to her that during the last conversation I had with a XXXX Representative, I understood that I did not owe any money. Anyway, I explained to her that the only mail I ever received from XXXX was mail soliciting my services with offers of gift cards as incentives. I could not understand why they 'd want to have me as a customer if I had an outstanding balance. I however asked the Agent to send me a statement verifying this outstanding amount. Yesterday, when I got home from work I received a large envelope from XXXX with a bill for {$110.00}. Amazingly, the balance was lowered and I was given a date of XXXX to pay this amount. I still have'nt reviewed it for accuracy because I was tired and went to bed. This morning, I received a call from XXXX XXXX, who stated that he was from Stellar Recovery and he was calling about an outstanding debt of {$250.00} from XXXX. He demanded from me when I was going to pay this amount. I explained to him what transpired with the XXXX Representative last week, but he was unwilling to listen to my explanation. The manner and tone with which he spoke was very rude and disrespectful. He continued to ask me when I would pay the {$250.00}, even though I told him I would not make any payments until I had reviewed the statement I received from XXXX and I added that in any case I would deal with XXXX on resolving he matter. He kept on demanding I make a payment today. Eventually, I disconnected the call and I blocked the number XXXX XXXX XXXX XXXX. I just recovered XXXX and I can not deal with XXXX being harassed and threatened, especially when I tried to explain the situation and the XXXX XXXX refused to listen.