I have a problem with my car TOYOTA CAMRY ,when I ...

I have a problem with my car TOYOTA CAMRY ,when I drive about 50mph ,the front shaking ,. Darcar 355 told me rotate the tire and alignment and charged me $115.00 .oh yes the problem still there ,bring it back ! They said change brake pads and replace rotate wheel ! Another $559.00 soar! The car still have some problem .I brought it back .Technician out wrong brake pad ! I just wonder that do they have poor service and bad technology technicians or they just lie and try to take your money!!!! BADDDDD!