Complaint Review: We will Transport it

This is a Broker for car transport that demanded additional money on the day that the car was to be picked up by a trucking company. A previous contract with the broker specified total of $900 charges and fees to be paid by credit card. After executing a contract, on the day of pick-up the company completely changed the terms and demanded that a cashier check should be paid to the trucking company and they will charge their fee on my credit card. first they wanted an additional $250 and then agreed to $100 by credit card and the rest as cash to the driver. If I would not agree to the new terms they said that the car will not be picked up and that my credit card will be charged $250 for their effort. Shame on a company that does business the way they do.