First off.. if the shop just replaced the parts with out doing a good diagnosis, you got screwed.. What you described can be quickly diagnosed by a legitimate mechanic with in a few minutes as to if it's the Master, Slave or clutch parts.. Obviously, if you have new Master/Slave and you are still having problems, then is LIKELY the Clutch Disk has come apart and the Clutch Cover can not open wide enough to let go..
Either case the next step is to yank the clutch.. So the money you just spent on the car was for nothing.. I'd BITCH at the shop that did it.. There is NO Excuse for this..
