bad service by renew it marlboro

I was involved in an accident on 15th Jauary 2019 and my insurance company which is miway took my car to renew it marlboro.i got my car back on the 5th February 2019. I used the car and realised 2 days after i collected the car that the fuel gauge was malfunctioning. I then went back to renew it on friday morning to explain the situation.they took in the car for a test and then came back to me suggesting that i continue using the car as i use it for business and bring it back Monday morning.i took the car back on the 11th February 2019.they said to me they will have to strip the fuel tank to check the problem.the lady who was helping me by the name Edna called me later the same day to say they have replaced a damaged sensor and that the car is ready. it was late already and we came to a conclusion that she will send a driver to fetch me at 8:30 am on the 12th.on the 12th i waited and no driver pitched.I kept on calling the company and the receptionist kept on saying Edna wad busy with other clients but the driver was on this way. I continued waiting and the driver only arrived at 11:00 am...when i got to renew it I was taken to the car.when I started the engen the engen light popped up. I immediately notified Edna and she called for assistance from the workshop guys.they then said to me it's nothing major they just have to clear this engen light which should take 10 minutes max.after 1 hour Edna came back with the workshop manager saying that they'll have to keep the car as it looks like its got a fuel pump problem.they then said they'll order the part and once they get it its easy to install.today on the 15th i messaged Edna to ask about the progress of the car.she said to me a driver is on his way to pretoria to fetch the part and will call later the same day after the part has been installed. it is end of business day and i didn't hear anything from Edna...renew it marlboro does not have a good customer service. and as for the workshop manager,they don't know what they doing..they claim that before they call to say the car is ready the workshop manager first tests and drives the car.i was call and yet the car still had faults...