I bought a fuel tank fuel pump assembly. Fuel pump...

I bought a fuel tank fuel pump assembly. Fuel pump went bad 5 days after I installed it. A piece broke off and wouldn't allow fuel to flow and it stranded me 5 miles from home. It cost me another 240.00 to have my mechanic try to fix it and found out that was the problem. plus I had to have it towed to his shop. I find it very discouraging that they won't refund my money for a defected part. I don't think I should have to send the whole thing back and be out more money for shipping and without a truck. I used to tell alot of people how cheap parts were to buy here and now I can tell them not to because they don't treat theie customers fair.