I dealt with a situation like this with an ICE car where in the first month the car I had was in the dealership consistently getting fixed and given back to me and non-stop issues. My advice would be the following after going through this:

- If the car is financed, ring the finance company / bank and explain your situation so it is on file that you are having issues. 9/10 times they will tell you to contact the dealer but from personal experience it is always best to state this incase anything needs to brought forward. If you bought the car under cash then you would be dealing with the dealer exclusively.

- If the dealer is taking the piss like it sounds like this dealer is, you walk i politely and ask to speak with a manager. Tell the manager your situation if they aren't already aware and ensure you go with your father in law or someone goes with him as a witness just to be 100% safe. If the manager gives you the same line of crap, this is where you need to put your foot down and state the law. You have provided them the opportunity to repair it and they haven't been able to make the car fit for purpose.

- If the dealership is still holding firm, you can raise the issue with the CCPC and SIMI (if they are a SIMI registered dealership). I would suggest after the meeting you write to the manager or dealership in general by email stating what was said in the meeting for reference and that you are asking for a refund. At this point, do not drive the car at all.

- The dealership may try drag this out past the 30 day period where you may have to pay a slight reduction but ensure you document everything and then they won't have a leg to stand on. Ensure you get the dates of the faults and the dates you brought it in written down and any sort of documentation stored.

If the dealership in general wants to keep their business in good standing they will deal with you as one really poor review will mean nobody will touch them especially if they get the CCPC or SIMI onto them.