Vodacom has no level of service

We have Business Fibre with Vodacom and in the last month of having the contract, we have had to log 3 calls as our internet is not working. We currently 3 days without internet AGAIN and I get promised a manager will call but no calls thus far. All the customer service do is communicate and escalate. How do you run a functioning business like this? We can not go without internet for days at a time and still pay the bills (including Vodacoms bill). You can not cancel the contract either. I am mortified at Vodacom service, it's appalling.