Product: Debt collection

Companies involved : XXXX XXXX XXXXXXXX XXXX XXXX XXXX XXXX XXXX I have NEVER done business with a company called XXXX XXXX. The account number listed I had with another company. On XX/XX/XXXX  I joined a fitness challenge that was advertised for 16 weeks at {$12.00} a week or {$50.00} a month ( documentation attached ) for a club called XXXX XXXX. The health center representative XXXX XXXX phone number XXXX XXXX XXXX, explained that you could pay {$100.00} upfront and have the rest drafted or pay the whole {$200.00}. He then stated that you would have to follow the program guidelines of the 16 week challenge to cancel and if you did not cancel per the guidelines, you would then pay {$50.00} a month for the remainder of the term. I decided to pay {$100.00} upfront and have the other two drafted. He noted it would be handled by a company called XXXX XXXX XXXXXXXX XXXX XXXX XXXX. At the end of my term I submitted my cancellation paperwork per the guidelines to XXXX ( documentation included ). Mind you I had to send two sets because the people answering the phone were not " sure '' about the process and dates. Whenever you called them you always got conflicting information and it always seemed to be on purpose to trap you in the contact. For example some of us in the program were told that we had to do 3 classes a week while others were told that you had to go to the facility 3 separate days a week. I contacted XXXX on XX/XX/XXXX to find out about the cancellation status since I had not heard anything. They told me it had been successfully cancelled. I asked for a written letter and they told me they could only send an email which they did. I have attached all of that documentation, including my account summary which shows I paid in full. You also see on the contract it is written that I was in the 16 week challenge. When I XXXX this company they have all kinds complaints and fraudulent reports made on them as seen here. 
https : XXXX On XX/XX/XXXX I received a letter saying that I owed {$55.00} for something. I attempted to call the XXXX member service line with no luck. I then forwarded the cancellation email I received to the member services email showing I had cancelled in good standing. I received no response. Today XX/XX/XXXX I received a letter from XXXX XXXX XXXX saying I owe {$410.00} to this XXXX XXXX XXXX again a company I have NEVER heard of. The letter stated that I needed to send a letter in writing disputing the debt but there were two different addresses. I attempted to call XXXX or go to the website to identify the appropriate address. No one answered the phone and the website is not functional. I also XXXX this company after not being able to find any real information on them and they also have MANY fraudulent reports as seen here. XXXX : XXXX XXXX are scamming people for sure and as a consumer I should not have to go through this harassment when I have done nothing wrong. Unless this is an error I have followed all of their ridiculous rules which are clearly set up to trap people into a contract and they are STILL bothering me. I have included the letter to them stating that I dispute these claims. I am sending it to you so that there is no question about what has occurred and they will not be able to say that they did not get the information.