Vodacom not responding to complaint for 3 weeks now

This is my second attempt to have my complaint resolved. I first lodged a complaint with the call centre that promised to call back but never did. Then I complained via Hello Peter on 10 May and Dean promised to give me a solution by 14 May. It is now the 20th of May and no response from Dean/Vodacom at all! Vodacom, in terms of the National Credit regulations, I am stating on a public forum that the inflated debit order due to the misselling by Vodacom cannot be honoured by my bank and Vodacom will be liable for any costs, should they proceed to attempt to take this UNAUTHORISED inflated amount from my bank account. The debit order date is the 25th of May. Dean or any one at Vodacom, will you respond to this please?