First Data Corporation Credit Reporting Complaint

First Data Corporation Credit reporting department,

Incorrect information on credit report Account terms California

I signed up at - - for a credit card processing machine. The sales person told me I could try it out and see how it worked for me. I returned the machine to him 2 weeks later stating it was too bulky and the monthly fees were too high for the amount I processed. He took back the machine within the 30 days and I was under the impression this was closed and done. I went to check my credit and see a charge for $ - from First Data and when I called to dispute they said he never closed the account or ended the contract.