Renault after sale service gets a thumbs down

Been two weeks and it's been so difficult to get the dealer to contact me with feedback. Had a claim that I put through and it was pending. I called Renault customer service and spoke to Brett who advised me that he would get the service staff, Zama to call me. Still waiting. I sent and email a week ago with a quote for the most common problem on the Renault which is rust and no response. Very disappointed with after sales service. There is no after sales service that is prompt and efficient. My car is waiting on this claim for repairs for 2 weeks. Imagine the average person who has to now Park off the car and use alternative transport at additional costs when you spend so much money to invest in the comfort of your own car. That rust patch on the back of my boot lid, very close to the logo and branding is a good display and marketing for others to see what poor quality it is. Surely with the vehicle being less than 5 years and still under factory warranty it is in Renault best interest to fix these issues?