Communication

I finished my contract in February and moved over to prepaid from March. As far as I was aware, everything was paid from my side for the contract. I get a call from my brother last week (alternative number) to say that vodacom is looking for me. I receive an sms last week Friday to say that my account is with the legal department and i should contact them asap. I called customer care as the legal department was closed - they tell me that there is no outstanding amounts on my id number. I often log onto my vodacom website and the mobile app and it has not shown any outstanding amounts. Now the legal department tells me that I am owing R434.70 for February. Why has it taken this long to let me know?? Apparently they did attempt to call me but call again, leave a message, send and sms, email... Why has nothing shown up on the vodacom app or the vodacom website when i log into my account - not just now but from early march?? I spoke to a consultant a few min ago and he couldnt really explain much to me and told me that he would send me my statement - nothing received. I have just got off the phone with another guy and he has promised to send the statement to me. Pathetic...