This was my worst experience ever. I have been com...

This was my worst experience ever. I have been coming to this shop for years. I have spent over 10k in service and repairs to have the outcome I had today.
I took my Stx to get a grand flush and to find out why my trunk will no longer open.
After being there for 2 hours the sales rep (who was the only reasonable person there) comes up to me to tell me my flush was completed and that they found my transmission lines to be leaking and that it will be 420 to replace them.
I proceed to tell them they change the lines previously at my last visit. Once this was confirmed the sales rep went to speak to the manager.
When he returns he now tells me it's not the lines but the entire radiator that will cost me 1800...
After arguing that this was a mistake on their end management would not budge to I decline the work and ask for the original service I brought my car into for.
Another 30 minutes go by and the sale reps returns with my bill stating " we did not diagnose the trunk problem but we need you to pay for it today and come back another day and pay again to find out what was going on."
At this point I refused to pay for anything other than the trans flush which after another meeting with the manager was approved.
When getting my car returned to me it is always washed and clean after all service they return my car unwashed and dirty for the mechanic who had serviced it.

I will never go there again and I recommend everyone to stay as far away as possible from this service shop.