Bad customer service

Their service is very disappointing,I took my car for a 30000km service and there was a part short out of stock which the consultant Brady was suppose to call me back as soon as they receive stock, it's been over 3 weeks now no follow up call from him or updates nothing whatsoever. I have to call for follow ups and nobody gets back to me. Very disappointing. Is this how Renault treat they customers because I don't remember receiving such service from Toyota Alberton they care about their customers.