Poor service

My car was towed on Wednesday afternoon. I was headed for a service at the Renault Umhlanga branch. The accelerator lost power and the car switched off. It's Friday morning and I haven't received any feedback from Renault South Africa. I last communicated with Mersha on Thursday when I bothered myself to find out whether they had received the vehicle. She advised me that a new battery was required, which is a surprise to me because my car is 1.6 years old. Ruth,Mersha and another receptionist have been very unhelpful ducking my calls or taking messages saying they would call me back to no avail. I finally got ahold of the workshop and he advised me that the workshop only received a battery today and they are fitting the battery now. I need my vehicle today. I supposed to go to my aunt's funeral in Richards bay.