Hyundai atoz

Bad faith false promises no feedback they told me we had to have a meeting on the 29th of April 2025 to sort out issues with the car and when the day came I ask for a time and I was completely ignored after car came back from having an oil leak and the car still had an oil leak and was in worse condition now the car won’t start and I get no attention from anyone with regards to their car as I do not have the natis papers and licence for the car