No Service, poor trained staff

Poor Service from Reception, service manager, service adviser, customer queries. Not ONE staff was trained to answer a very basic question regarding my Bosch Dishwasher. It has take 7 working days, 14 people in total who take messages, promise to get a service technician to return my call. Phone was put down in my ear when I asked who I was talking to. Then I call back & they blame the telephone system. The conversation gets heated im beyond frustrated and ask funny how tge call doesnt get cut now & your phone system works 100%. So Sad to see a global company like Bosch have such poor trained staff. #onlyinSA.!