Customer Cervice

My car has been serviced by this branch previously whereby I didn't have any problems. However I took my car back to them for her 75000 service which left me with a sour taste in my mouth. The day after my car was serviced my car started to make a huge/loud sound, almost like the left front tire was about to come off. After taking it back to Hyundai & complaining to the dealer principle Riaan & Gerhard. It seemed that all was now okay, the dealership even offered to have my disks skimmed at no cost, which was nice. Took my car & trusted all was well, only to find out there is something wrong with my gearbox/gears. I booked it in again on 10 March. I was contacted by the dealer whom advised that they have picked up problems and did everything from their side, however they don't have the equipment to work on an A/T(I am disabled) & sent it to Myfair Gearbox as my car is still under warranty. Before taking my car in for her service, I never experienced any of the problems above & requested a curtsey car from them as I need to travel to work & see clients, only to be told NO, they don't have spare cars in AT & not lending any. I require a car until mine is fix, can someone assist pls?