Unsatisfactory service

On Friday the 29/05/2015 my phone stopped working. There was no Internet service, I couldn't make or receive calls and my messages weren't allowed, hence all the functions of my phone had been disabled. I called the Vodacom customer care and explained my problem. the agent I spoke to said they having problems with blackberry/bbm due to it being month end and high volumes usage. I was asked to do a manual settings and wait till Monday to see if improvement. went to the nearest Vodacom spoke to a lady whose only suggestion was call the call centre and log a complaint again. I called and logged complaint. was told will be sorted within 48hrs, no improvement. I called again, this time put through technical support were I had a log a fault again. 5/06/2015 was contacted by them saying they cant see it being their fault, and will contact me 08/06/2015 to continue. No response I called again this time spoke to a rude agent who dropped the call, called back asked for the manager who said the only thing she could do to help was send an email on my behalf. since then I received an sms saying pending. 5 agents and 3 mangers and no improvement . I am frustrated and disappointed .