Bad service and bad quality parts

I would lik to know what standards of parts do Renault provide to their clients. My father repaired his vehicle with a new turbo lasted a day leaked oil fixed it again. Travelled to Cape town no problem. Travelled a week in Cape Town and turbo blew brand new Renault part less than 2 weeks old. Left my parents stranded and was luckily assisted by my brother. Vehicle was left with dealer in Cape town to repair took a month. I had to fly my parents back to home due to no transport. Dealership at home at least provided a vehicle for them to be mobile. This happened in May 2017. Today is the 4th of September the new part has not been sorted or send back to be replaced. No reimbersmints was made for airplane tickets paid. The discomfort for ruining my parents holiday. And to date no proper Renault Turbo part for my fathers vehicle.

Is this who Renault South Africa is