When you can't receive calls or sms's and vodacom can't fix it.

I've been a vodacom customer for around 10 years. Recently I cancelled my airtime contract and moved over to prepaid. Unknown to me, as soon as my contract was cancelled and moved to prepaid Vodacom stopped allowing me to receiving calls or sms's. This happened a week ago, and although I've tried every option to get it sorted, Vodacom cannot assist. I've tried calling them (if you're on prepaid, you can't speak to a human). I've tried their bot Tobi, I've emailed them, I've been to a store and dealt with a consultant and finally I've been on the phone to a consultant for about 30 minutes. Yet there is still no resolve, and I cannot receive calls. This is highly detrimental to my business and vodacom don't seem to care. Apparently it's been escalated - but I still cannot receive calls a week later. So disappointing.