Brakes stickin after brake job

#1 you owe them $ 0 more
#2 if that is your car in the avatar-- you need to learn what you have,, research 8 3/4 rear

you car is most likely has an 8 1/4 rear with disc brakes up front
very common parts & still readily available.
shimming the brake drums makes no sense-- is this shop qualified to work on cars?

post up a picture of the rear end in your car,
go to rock auto to see what is needed for the parts-- ie front pads & rear shoes plus rubber lines & possibly wheel cylinders.

you have 1 day to educate yourself & make that car safe to drive..

this site has valuable information-- the search tool is fantastic-- use it.
Lawrence