Bad Service

Good day , I have been trying to upgrade my contract for several weeks. I get no joy from the call centers. I cannot contact any of the stores , numbers just ring continuously. If I get through a store they tell me they do not have stock. The call center staff are not trained and do not know their products or systems well. The one call center agent says they have stock and I should speak to the people that deal with the new system called Ilula. when I call them they don't know what I am talking about. I have submitted my details on the website about 10 times , and nobody gets back to me. I even sent an email to the customer care department Service is pathetic I will be changing my contract to another service provider