one month, still no upgrade!!!

On the 14th of March i app**** for an upgrade for my grandmothers cell phone online. No one called back, when calling the callcentre i was sent from department to department. From online upgrades, CD3, retention, customer services. i have called every 2 to 3 days for the past 4 weeks. They keep transferring me and cutting me off. Last week at customer care they put me on hold while they \investigated\" for an hour and 8 minutes, only to be transferred to the call centre and told they have to start again. I have 7 emails from customer care saying they will call me back within 24 hours ... NOTHING! i have more than 5 reference numbers for the same query... i have a list of 15 names from vodacom who have not resolved my upgrade. its a simple upgrade!! Vodacom says upgrade and next day delivery, its now a month!!! The service is shocking and the amount of times the agents have cut my calls is disgusting! They clearly dont care about their little customers. My 86 year old gran has sat at home waiting for a new phone for a month.... what a disappointment!!"