Disappointed with Vodacom service

I'm really disappointed with the service I'm receiving from Vodacom, I've been a customer for over 10yrs and I'm a business man,

Last month I had delays in my payments coming through and couldn't pay for my Vodacom contract as usual and my account was suspended, can't make calls,can't receive calls and sms and I use this number for my business.

I called Vodacom for an arrangement to pat the arrears and they said they would convert me to prepaid until I settle the balance so that I can receive and make calls in the meantime and that would take 48hrs.

It's been almost a week now and I've called 3 times already because I still can't make or receive calls and I'm loosing money because my customers can't get hold of me and that money is the same money that I was going to use to settle my Vodacom account.

The last guy I spoke to just said he can't do anything I just have to wait,and the lady I spoke to before him said the convertion was done but still nothing.