When I bought a new car, I also bought service maintenance and road hazard coverage contract. In the contract it was mentioned if I cancel with in 30 days, I get full refund. I cancelled the contract with in 10 days but when I got the refund it did not include the 7% NJ sales tax paid on the purchase price. Shouldn't the Dealer refund the purchase amount and the sales tax ? Doesn't the term Full amount include sales tax as well ?