I bought a kit of the rigid brake pipes for a car from Ebay. UK maker and supplier. Not cheap, either. I bought the kit to save time over making them myself, as I've done before. About a dozen pipes in total.
On removing the old to use as a pattern to bend up the new, the first one I did was over length. Thinking it likely just the one, cut it down to size. But it proved to be all of them. The worst, 360mm too long. Impossible to 'lose' that and still have a neat result. The pipes came coiled. Very difficult to measure the length of the old pipes accurately, given the multitude of bends. By the time I'd discovered they were all too long and would need cutting, too late to send them back in a re-saleable condition.
Other thing was two had the wrong unions. Which again had to be rectified. They's also used longer unions (made from brass) than the originals which were steel. And in one place made it very tricky to fit without further dismantling.
Final thing was the supplied clips totally useless. They are meant to clip into a 6mm hole and secure the pipes. They simply fell out of a 6mm hole, and I had to source decent ones, as a few originals on the car broke when removing the old pipes.
Contacted both the supplier and maker. Got the usual run around. Anything other than admit liability.
Offer so far is a 10% refund of the purchase price from the seller and a discount code for any future purchases from the maker. Which simply doesn't cover my extra costs - let alone the labour involved in altering them to fit.
Any tips on how to screw a reasonable refund out of them? The very least I'd expect is the difference between factory and retail price.