Vodacom bad service

Went to Vodacom, Welkom Square, to pay cellphone contract bill. Asked them to not allocate funds to wrong account, as they have done in the past. They made this mistake again - have been calling customer care (emailing proof of payment to Simonay Hayes and Sinah Mkhondo - absolutely nothing) and visiting the branch (with proof of payment) daily to absolutely no avail. Business phone has been off for four days now and no one seems competant or capable to help. Absolutely disgusted in the lack of service. Huge problems with business, who can run a business with no phone?! Cancelling my contract.