Trash after sale service

After buying a car from the plk branch, these people gave me a used roadworthy voucher and when i called them to fix it it on the day i was at dekra, they sent me from pillar to post which i ended up uaing so much of my tome and petrol. When i called in to speak to the sales person he was so useless and told me to lay a complaint and also ask for my petrol i used. I was then contacted by Mpho who asked me for my receipt of the fuel only to come back and tell me they can’t refund me for the fuel as this will result in a loss on their side, so to hell with the fact that i experienced loss due to their negligence and bad service. This whole experience gave me a different outlook on this brand and loss of trust as this was the 2nd car i bought from them. This is the kinda trash service that drives people away and i swear this is my last time messing with them