Product: Debt collection

I received a letter in the mail on XX/XX/2019 from Peroutka , Miller , Klima & Peters , P.A . stating that they were representing XXXX XXXX in an attempt to collect {$650.00} on a closed credit card. I told them no problem that I had spoken with XXXX   before and that we had agreed on a payoff of 50 %. I informed them that I had never received that offer in writing from XXXX and that's why it had not been paid as of yet. I was informed they would not accept that offer and the best they could do is {$430.00}. I was not satisfied with the offer and asked to speak with a supervisor, I was then transferred to another individual who basically told me the same thing. I was then transferred to the " firm director '' XXXX XXXX. After explain to him what I was told by XXXX as well as his employees and that is why I had requested to speak with a manager he very quickly became very protective of his employees and what they had said. He became very combative and defensive and told me my 2 options were to either pay the {$430.00} by XX/XX/XXXX or they would sue me for the entire balance, court fees and lawyer fees. He was very adamite and told me over and over those were my only 2 options even though they were representing XXXX and would not honor their offer. He ended the phone call telling me the offer letter would be mailed out and I would have till XXXX to pay that amount or be sued. 

I called the office on XX/XX/XXXX at approx. XXXX XXXX and spoke with MR. XXXX again to make my payment, after finding out they did not accept card payments he explained to me I could simply go online and make a payment when I had my banking account number and routing number available. I asked him to confirm the amount of {$430.00}, he hesitated and stammered for a few seconds then said yes that's correct. 

On Saturday XX/XX/XXXX I got online and made the payment of {$430.00} that I was told was the lowest settlement offer they would accept. 

I was out of town for training the following week and when I checked the mail on Friday afternoon ( XXXX XXXX ) I had received a letter from them dated XX/XX/XXXX ( the same day I had spoken with Mr. XXXX late in the afternoon ) that they would accept a settlement of 50 % ( {$320.00} ). 


I called Mr. XXXX on Monday ( XX/XX/XXXX ) and explained to him the letter I had gotten and reminded him this is what I ihad agreed to with XXXX  in the beginning. 
I was told that he was not willing to do anything about it, that they had reicived my money and there would be no refunds. He seemed not to care and said he had nothing more to say to me. I asked to speak to his supervisor and was told he did not have one. I then asked if he was the owner, he told me no so I asked to speak to them, he refused and said they were unavailable. I told him that was no problem I could just leave a voice mail and they could reach out to me when they have time. He informed me they don't have voicemails or phone numbers. I then asked for an email once again I was told they do not have email addresses and that if I wanted I could write them a letter. I told him I would not write a letter as I preferred a direct contact method. He told me that wouldn't happen and so I informed him I would be out of the country for the next week and asked him to have them reach out to me via email or phone.