"Upgrade" to nothing

Vodacom contacted me whether I would like to upgrade my fibre line - I said yes. They said they would process it - they didn't. I phone through - BRILLIANT - after signing all docs the upgrade was completed quickly. But guess what... when upgrading the line speed the IP4 address changes and I have lost ALL data flow for the past two days at a time when business is heavily dependent on internet connectivity. What a joke - the customer agrees to pay more and receives, literally, nothing. Pathetic processing with ridiculous claims - yes it is now well over 24 hours since it was reported and 36 hours since the line was cut with the IP change. Customer service email - absolutely no response. Call centre a shambles having spent 2 hours with no result.