Online Upgrade nightmare

I have two contracts with Vodacom for my children. We did an upgrade for my son online, but the upgrade was allocated to my daughter's account. In the meantime we took out a data plan with router for home use. The branch then assisted us to upgrade my daughter's contract, but somehow the upgrade got allocated to the data number. Several attempts to resolve the matter in branch has been in vain and despite holding on for almost an hour, I cannot get through to the online department to resolve the matter or to cancel the upgrades.