I bought a muffler hanger (about a pound) and a serpentine belt for the AC, the small one. They were $18 ea., $24 ea at my dealer. I got an email "invoice" for those prices plus a $1 service charge. I got nothing with the parts, though they came and the service was pretty good. But I got a $56 charge on my credit card statement. I would have expected $8-12 for shipping about 3 lb incl box from PA to NC, not $20. And I certainly expect an invoice with shipping charges detailed, and a proper BMW receipt in case I want to warranty something.
The first time I ordered something from Jason I paid $4 shipping on a $400 steering wheel, and I have always gotten a proper receipt.