Bad service from Hyundai East Rand Boksburg

Bought 2017 H1 vehicle from Hyundai East Rand in December 2023 and took out 2 year extended warranty with Msure. We noticed an oil leak in April 2024 and reported it to Hyundai East Rand,they kept the vehicle for more than 2 weeks assessing oil leak and eventually they ordered intercooler and hose from Korea which took more than 3 weeks to arrive ,they refused to give us a courtesy vehicle to use even though we pleaded with them that it was a business vehicle(Scholar transport) more than a month later and about 10 visits to Hyundai East Rand and after they claimed to have fixed it, we picked up H1 on Friday 2nd August and the vehicle is still leaking oil. The oil leak was reported within 6 months of purchasing the vehicle yet as a consumer we still encountering their bad service and incompetence. Management at dealership refuses to take ownership of incompetence. We are asking the dealership to provide us with courtesy car or hired vehicle so we can bring the vehicle back to Hyundai East Rand to fix the oil leak.