all star direct auto shipping ripped off California

i had to ship my car from NYC to Houston they gave me a quote of $600 with $300 deposit and and $300 to be paid to the driver at pick up when the driver came for pickup he asked for $700 instead of $300 the pickup was cancelled because they didn't honor their word now they won't leave the deposit because the car was not shipped American Express says that they say the deposit is non refundable because i signed the original quote this company plays a game with people and mess up their whole plan The required authority should deal with these kind of people very strictly