Watch out before buying a vehicle from this dealer

My boyfriend recently purchased a vehicle from this dealer and within a week I found faults on it, when he questioned the salesman about it he refused to accept responsibility and advised him to use his warranty policy that he took out- he knew very well that these faults were present prior to the actual sale and refused to utilize the policy. He was then verbally advised to conduct the repairs and he will then be refunded - he had done so and have given the salesman the slips for all repairs and to date has have been given the run around with the refund.