Worst service at VW Polokwane

I booked my car in for repair because the water bottle that sprays water on the windscreen is leaking so it doesnt carry water for a day and when the aircorn is turned on while driving it pours water inside the car on the passenger side, my car is still under warrant and i have a maintenance plan as well but my service advisor said they can not replace the tank because my warrant doesnt cover that and my maintenance might not cover it but for them to check n confirm they will also have to give me a quote of which if I decline the quot ill have to pay R900 so i refused such things,they told me they will only look at the aircorn problem...the first communication when they called me to inform that they are about to work on the car and i must come fetch it was at 16:00 on the dot ..i got there they told me they dont see a problem with my car which tells me they never drove it to check it, now they tell me i should book it in again at my expense,mind you i stay 160km away from the dealer and leave it for 2 days atlease but they wont offer me a car in the mean time...i had to run after the service consultant as she was knocking off while i was still in the shop with the technician, without even releasing my car.