Complaint and not treated fairly

Took my car for service on 22 September 2020, got my car back the same day cool, the following day 23 September 2020 it reported a fault in the electronic brake drove to work anyways but on my way back it got worse to a point where it couldn't drive luckily I was closer to Barons PMB where it got serviced I went in around 4:15 or so they checked it and advised that there is definitely something wrong with the electronic brakes on 1 tyre and they needed more time to further diagnose the problem. The manner in which I was treated was disrespectful to say the least I was told I should leave the car and they can only do the diagnosis on Friday and they are no cars for me to use however I can be dropped off home. I explained I was not from the area and needed a car to use I was just left there with no other option it was just that take or leave it attitude mind u my car was fine when it came in for service. The service lady tried to talk to a Manager to sort something for me but the guy just resigned and couldn't d care less what happens to me how I was treated made me feel less important there were cars that were there I guess I was just not fit or important enough to use them. My car still has warranty and service plan. I had no choice but to take my car as undrivable as it was and try to get home deactivated the auto hold as instructed by some mechanic within barons I'm so hurt and disappointed in the service I received. I have an important meeting to get to at work and I have no idea how I will get around I am suffering for something that u barons did to my car! Total disgust