Mahindra And Mahindra — Service complaint sri durga automoblies moti nagar

I have recently booked service of my car from sri durga moti nagar workshop.
But my experience was very worst with your company.
I haven’t pay for washing charges in other companies…they will already include their washing charges in service charge but in your company first time i have ever seen that you are charging extra amount for washing which is not included in service charge
So i paid for it but i still get dirt all over you haven’t properly washed my car for which you have charged…it is your service???
You have charge me for someting exterior protection system…what is this I don’t even know what you have done with this??? I want refund for that which was not seen anywhere on my car….