Thanks for the reply ocnybmw!! Appreciate it!

Picked my car up at 5:45pm tonight, service bay was basically closed when I got there, so not many people for me to talk to and inquire about what was done today. They "said" they found a loose piece of plastic under the seat, and that caused the problem. I told them NO WAY, and showed them so many postings of other E70 owners, and either the seat was replaced or many, many parts. There was NO WAY a loose piece of plastic was causing this creak/crack. They assured me a mechanic, the shop foreman and the Quality Control Manager drove my car (27 miles!!!!!) and the creak/crack/snap is 100% gone.

I wasn't 1 mile from the dealer and what do you know....Snap, crackle, pop!! SO PISSED! A wasted day, 27 miles of what was probably joy riding...and no repair.

I got a hold of my SA, and he is going to call BMW tomorrow and let them know 2 repairs were attempted, and to ask them what they are allowed to do next, in terms of warranty work.

It's amazing, something so small as a seat creak can make you not want your basically new BMW. So frustrating!!