Duke of Oil Attempt to rip off customer Merrillville Indiana

Had a small leak for a while, paid Duke of Oil to degrease and dye the underside. Went back and was told I needed to have cylinder gaskets replaced, entailing taking the engine out and replacing - for $2500.

Called a respected mechanic, who recommended Wolf Auto in Merrillville, and was told a small gasket need replaced and would do, along with another oil change, since they had to drain it, for only $250

How could someone treat a repeat customer like that, blatantly lying just to collect a lot of money. Hope others are reminded to get a second opinion with matters like this.