Adsitco had a difficult to find part
I ordered a power seat switch for my 1987 Mercedes. This is hard to find and not available new. The part arrived broken in the same way as the one I was trying to replace. I called for help and was instructed how to return the broken switch. A replacement arrived about a week later. It is on the car and working. Despite the first part arriving broken, service was polite, helpful, and prompt.