Sos Appliance Repair

They came they quoted $450 for a part plus another almost $400 to install it. i researched the part online and by phone and found it at a store for $48.99. When I informed them of this (and other sites that had that part listed for less than $50) they refused to reduce the price of the part they quoted. Finally after one week from the original service call they refunded the almost $500 deposit i made but not the service charge fee ($90!!!+) you'd think after being found out as untruthful they would be a bit more apologetic but nope. Managing technician seems shifty... refused to speak to me or call me directly. I feel sorry for the reception staff there who all do seem quite nice.