Bad customer service

Well I'm very upset with the poor customer service I got from the Ackerman's in Bellville I took In a phone for software update and that was more then a month ago and every week I need to call after them I can't get trough to the landline then I call they head office someone come back to me 2 weeks back and until today I didn't get any feedback if the phone is fix or not and they store lines doesn't work I have to call to the head office everytime to check up and I tried by all means to get the phone fix by other repair shops and they said they can't fix Premio phones if someone can from Ackerman's can call me ***