Faulty alternator

I had my cars alternator replaced at Protect Auto service, the Bosch garage in Benoni. I had to return the car a few times because the Bosch alternator was faulty. At one stage the car left my wife stranded next to the road. Protec auto towed us in and replaced the alternator. Three Months down the line while on holiday in Mosselbay the alternator packed up again. I had to replaced it with the genuine part witch cost me almost double the price. After the holiday I retuned the Bosch alternator to Protec auto service centre seeing the alternator is still under guarantee. <br> It is now three months later and no positive feedback has progressed. All I really wanted is for them to meet me half way, seeing that an incorrect alternator was fitted.<br>