Hyundai does not attend to repeated complaint about rattling noise in engine

We bought a new VENUE 1.0 TGOI MOTION OCT, in March 2020, from Hyundai Silver Lakes. The vehicle currently has about 37000km on the clock. The Service record is up to date. Since about 15000km a rattling noise from the front of the engine has been noticed. The noise has been reported several times to Hyundai Vereeniging. They inspected the engine and found the timing chain lost tension causing a rattling noise from the engine The dealer replaced the Cambelt Chain and Tensioners, and V-Belt on 29060KM, on 01/09/2023. After receiving the car back, the rattling noise started again, after a while, and was again reported to Hyundai Vereeniging. The car went in again for the next service on 29/04/2024 The Workshop Manager reported the splatting noise is generated from the tensioner not holding pressure properly due to internal seal failure Replaced the timing chain and tensioner and they arranged a courtesy car. The noise is now becoming worse, and I phoned Hyundai Vereeniging and asked to speak to the principal on the 29th Of October 2024, and he never called back. A timing chain must last at least 30000km to 40000km and it does not make sense to replace the timing chain at such short intervals. This situation is becoming more, threatening because we never know when the engine will fail. I expect Hyundai South Africa to intervene and contact me to resolve this issue.