Very bad service

My Vito bus went in for engine repairs in mid December. What started off as a turbo replacement ended off in a total engine overall of R45,000 ( my cost)To add insult to injury, after taking delivery over Weeks later, the Vito's Prop shaft had to be fixed ( was never a problem before). This bill I also had to foot, Another R9,500! Mercedes sent the shaft to SA Propshaft, who apparently is not the cheapest ( that I can attest to!) but the best (which is a farce!).<br> After another week I pcked up the Vito, only to experience a vibration at speed between 80-100 km. I returned the Vito to Mecedes Worcester, who stated that the repair from their SA Prop was poor. After another 3 days , I drove 100 km on a Saturday morning to collect my Vito after they told me that the problem is fixed. To my dismay the Vito was driving WORSE than EVER! The Vito vibrates at high speed and feels unsafe ! My view is the shaft is unfixable, as it has become completely unbalanced of all the poor workmanship!<br> <br> How can Mercedes, an icon reputable brand allow such extremely bad workmanship and customer service??? There was not one call from the dealer principal or senior staf to my complaint!!! Unacceptable!!!