Optimal credit card processing Commerce Payment Systems kept credit card processed money even after reciepts were provided Hewlett New York

This company kept money owed to me from a credit card which I processed through thier company. When I charged a customers credit card for merchandise they purchased I was given an approval code and the customer left my store. After one week went by I never received the money direct deposit in my bank. They claim no such charge happened so I provided receipts and then they tried to charge the card again but then the card was denied. So Coby(employee) told me I would not receive the money from them. I have cancelled my account with them after 20 phone calls and alot of wasted time.