Business ProfileforMission Hills Hyundai

Had a check engine light on so brought it here for a diagnostic and boy did I regret that! Dropped off the car early in the morning knowing of the $219 diag fee aswell as it most likely staying for the day. Got a call a few hours later that 2 codes popped up 1 was the spark plugs 2nd was a bad catalytic converter . Unfortunately i dont just have 4 grand to spend on my car right now so decided to go through with just the spark plugs . They said itll be ready first thing in the morning thats fine. But no after 3 days yes i said 3 DAYS ! , My car was ready. They didnt even bother calling me i was the one who called for an update, since 3 days for spark plugs just seems ridiculous. So I go to the dealership. Waited like 40 min to be checked out. I was told the 219 diag fee would go towards my service if i went ahead with whatever was wrong with my car ( which i did ). When it came time to pay the bill i was thinking $200 tops right but to my surprise i get hit with a $600 bill! I tell the advisor why so much! He says because the diagnostic came out for the catalytic converter and since I wasnt doing that service i was paying the diagnostic fee aswell as the spark plugs! That makes no sense! 2 codes came out and i went through with one of those services/codes that came up in ******** check so the 219 should go towards my bill! If i wouldve known that from the beginning i wouldnt have done the service there to begin with ! To have them "work" on my car for 3 DAYS for a simple service then get lied too and slapped with a $600 bill !