Well, worst case scenario = the shop sucks. May or may not be true. Some places suck. Been that way forever. I know of a sucky deli, a sucky convenience store, sucky auto repair garages, sucky appliance dealers, hair salons, and more. I think these places suck. Others don't. That's ok.
Easiest thing to do is laugh, and then go online and spend the $12.99 elsewhere.