vodacom upgrades terrible service. Still struggling.

Ive been struggling to upgrade my contract and take out 2 new lines for 5 days. I'm a RED contract customer. my overall spend is >R5000 a month for years. Im being told that there is a technical systems error on my account that the technicians 'just can't figure out.' I'm getting no communication form vodacom. I even asked to open a new account to solve the problem, and I'm being told i must pay R6000 upfront with a new contract. This, despite, never having had any debt with vodacom and having being a high spend customer for >20 years.

Time to port?