Business corporate account-No support

We currently have a business corporate account- with Vodacom for several years & for a while now the service levels have been unacceptable! We have a few lines that are up for renewal and need to renew but absolutely no one can assist. I’ve sent emails and Up to date, no one can advise or assist who our corporate account manager is let alone the assistance we require. If this is the way Vodacom wants to run or treat their customers then we will gladly move to other service providers who are willing and able to assist & far more competitive. If I don’t get the assistance that I need by end of business today, I will move our business elsewhere.