I changed CC processing vendor on October 2009, sent the cancellation request with the local agent I was working with. The monthly chgarges still got deducted from my account. I realized after two years when I sold my business that First Data Merchant service is still deducting monthly service fee from my account. I faxed them cancellation request on June 14th 2011. Called them on June 26th to make sure they have received my cancellation notice. They said they did not receive my cancellation request. (I have proof of transmission). I faxed them again on June 26th. I called again on July 5th when I saw that fee got deducted from my account. Again they said they have not received my cancellation notice. (I have proof of transmission again). I faxed them third time on July 5th and called them on July 8th. Finally they told me they have it. They refuse to credit my account for unauthorized deduction they made. They have done this for 2 years.