Rather buy another car than a Nissan

My car a Nissan X-trail was in an accident . On 6th September my insurance company gave authorization for the repairs. The panel beaters subsequently ordered the parts from McCarthy Nissan in End Street Johannesburg. The parts is since the on back log with no indication as to when the part will be delivered. I have phoned McCarthy last Wednesday where they laughed at me because the person responsible is on long weekend and apparently no one else can follow up. I have also at the same time phoned Nissan's customer service and is still waiting for feedback. If I knew that Nissan delivers such a poor after sales service I would never have bought a X-trail.