Crown chipped several times on the side and metal is exposed. Its only been 4 months. Advice?

Hi, My old crown last 8 years without a problem. A new dentist said there was cavity on the crown and did crown for me 5 times and all 5 psm crowns chipped in short time period. Once it chipped right onsite after testing my biting on gauge. He acknowledged that other patients who also got the chipping crown problem and he is going to stop using the supplier. It has been about 4 months and the last crown which he did chipped again. Can I ask my money back? He only charged me the first time.