In XXXX 2011, I started a small XXXX Company and wanted a slide/portable credit card machine. So I contacted XXXX XXXX XXXX. The Bank immediately helped me over the phone and sent me the credit card machine. However, they asked my bank account number to make the deposits after 5 % deduction of their service charge, and the credit card machine was free. 
I said, ok and in good faith gave my bank account number. 
Since I was just starting the business, I had no clients and hardly used the credit card machine. Soon, I noticed that the XXXX XXXX started to siphon out money from my bank account ranging in the amount from {$25.00} to {$50.00} a month. When I inquired, and stated that we had agreed before I started the service that they would charge me only when I use the machine 5 % of the amount of transaction. They tried to justify that they told me before hand, which was never mentioned at the beginning of the when the service started. I felt misled, so I called them up and told them that I felt deceived, therefore, they abide by the initial promise they charge me only when I use the machine. I requested them not to take out any money from my bank account, because I never authorized them to do so. The only reason, I gave the Bank account # was for them to deposit the transaction amount after deducting their 5 % charge. No term was disclosed to me at the beginning either. But they continued to take my money on incremental basis. Therefore, I called them up to cancel my services with them and they told me to return the credit card machine, which I did. Even though I asked for the acknowledgement of the receipt over the phone after tracking the machine which reached to them, they did not respond for two and half years, nor did they try to contact me. Surprisingly, the collection Agency started to call me too often and tell my social security number. I am very much worried that they are trying to extract more money from me and destroy my credit. 
As a hard working citizen, I have responsibility to support my family and then thinking of a dream home. But things like this has threatened my integrity and and the credit score. 
Therefore I request you to contact the bank and consider this case null and void and close it forever without affecting my credit. 
Thank you