Covert Chevrolet

I went in for an advertised oil change, tire rotation, and inspection service. After a lengthy wait, I was told by the service writer that i needed a fuel injector cleaning, which was $190. I declined this service. (While I was waiting I heard at least 3 customers told they needed this same service) I was then told that my cabin air filter needed to be replaced and the cost was $40. When I got my bill the air filter was $39.95 just as I was told. However, I was charge $20 labor to install the air filter (which they already had out and had to put back anyway) and $24.33 for misc. shop supplies used in the servicing of the air filter. In the end, it cost me $84.28 for that $40.00 air filter. I also observed multiple customers told their air filters needed to be replaced as well. Each time they were shown a very dirty air filter. In hindsight, I believe it was the same filter each time. Very disappointed in this experience.