Pathetic that Vodacom locks my phone!!!

I upgraded my phone on the 9th of January. I used a Blackberry 9320 previously and only because the battery was completely failing, did I go for the upgrade. I now have a Samsung galaxy A3 which I cannot even use as Vodacom sent me a message saying they softlocked my phone!!! How is this even possible when I spoke to a call centre agent on Tuesday who advised me that I still had minutes available. Since we spoke, I never dialled out!!! I even asked him about adding a limit to my phone and he said I got minutes and there's no need. Now it's been 2 days and I have a fancy phone that I cannot even use!!! I called the call centre and spoke to the Supervisor Sphelele Vilalkazi who promised to call me back with answers in 30 minutes. That was yesterday at 11:50am and he has still NOT called!! I keep getting sms's from Vodacom-saying we are working on the problem etc etc, but no one can tell me WHAT the problem is and WHY is it taking so long?! Then I get an sms saying please ask for a statement so you can see what you are being charged for! My bill for this month is R240 and it's not even the 31st Jan yet so why was the phone locked?! I need answers ASAP. Really pathetic and no apology!!