Vodacom pathetic service

I have a contract with vodacom and been a client of theirs for 20 years, I need to take an extra line but it is becoming a real challenge. I have been blocked from contacting their sales department for reason unknown to me, I am now expected to call a line where I will be billed to sort out a problem I did not cause. I have lost two black friday specials because of this bull****. Why change a system that is working and replace it with something that is not, I wonder which ***** at vodacom decided to change from top notch client service to this pathetic service.