False advertising, false promises

Early April I contacted WebAfrica after seeing an offer of "no charge" on a fibre package signup. Called in, was told about all the costs involved and on querying the "no charge" offer, was requested to email the offer to them which will then be forwarded to their billing department as it has to be honoured as advertised. So I signed up. Guess what? I am responsible for all the additional charges. They did NOT honour the "no charge" advert. I have called in numerous times, I have emailed the offer to accounts again as requested, and have had promises of being called back. I have not received a single call-back. I will be cancelling my subscription, of course, and will be telling anyone that wants to listen NOT to use this provider!!