Appalling Service- Hyundai Edenvale

Hyundai Edenvale - I took my car in for a service on the 3rd of January. Noticed that after filling up with petrol the inside of the car would smell of petrol.Returned the car on the 17th and again on 24th for the same issue. First it was the petrol filter not fitted in correctly and then the second time it was the lid was not fitted in properly. I filled up with petrol yesterday afternoon the smell of petrol has not stopped since. For the whole month of January Hyundai Edenvale has not been able to identify and fix the problem.Sense of urgency and competence is not high on the agenda at this dealership, given the sensitivity of this issue and the devastating effects it could have for my car and potentially other drivers.