They know 100% positively the leak is a damn drain plug but they don't know how to fix it and hand it back to you with the same leak, I love it!
My thoughts...
#1 That drain bolt could be STRIPPED out or cross threaded which will leak. Or the mating surface between the plug/pan could have some kind of debris in there not allowing a good seal.
#2 The front flange of the oil pan is leaking down.
#3 Leaks at BOTH locations - most likely not.
My problem here is the feedback ends from your personal knowledge because you did not do the work yourself. So in other words you don't know exactly what they did.
I would be observing that drain plug and oil pan bolts.
Hope you get this taken care of because this is BS. Let us know
