Car jerking after putting Q4 fuel inside my car

On Sunday the 7th of August I put petrol at Q4 fuel station in Mookgopong/Nabomspruit then as I was on my way home to pack my bags as I had to leave for Pretoria on the same day car started jerking once but I ignored it went home started preparing my bags and around 13:00 I left Mookgopong for Pretoria then as I was leaving town it happened again but in my mind I was like it will go away then It became worse as I was approaching Modimolle but I couldn't go back to the Filling station to complain as I was already far and time was not on my side so the jerking would come and go away and in my mind I was like if only I can get home then I will be able to drain all the fuel and put in new petrol with Fuel system cleaner to resolve the issue so when I got home I was too tired to do it same time so I was like let me relax a bit before I drain the fuel so after an hour I went to the car to start and go get fuel at a filling station inside a container but the car did not start at all I tried several times until I decided to give up then I drain it out and got new petrol but still car doesn't start so the following day I got hold of cellphone numbers of one of the guys who work at the station by the name of Ben called him and he asked me details about my car type and time and the amount so that he can check camera's then he will get back to me which he never did so the following day I tried calling him since he never called me his phone rang unanswered then when I tried calling him again he had blocked me and at this stage my car is stuck and I depend on it as I do ehailing and I don't have money to fix it, and apparently few people had the same incident with the same filling station and nothing was done about that