Airtime and data gone in less than 5 minutes

As i type this i have been on hold for the consultant for 50 minutes on 082111. I have loaded R92 airtime and tried buying data but failed because i was informed that i have insufficient funds. The first few times the balance was still correct , in leas than 5 minutes my airtime was gone and still no data iether. Self help option is useless, your consultants have been busy for now the last 51 minutes and counting. Should i reconsider my network provider?