Ignored - Early cancellation query

It's been months now waiting for Vodacom to resolve my early cancellation query. They don't even call to provide feedback on the query. I've even lodged a complain with Experian as this will eventually impact my credit score. I requested a cancellation of the last contract I have with them and it's been weeks of no feedback. If you don't spend 20 minutes daily on a call with Vodacom, nothing happens. Worst service provider!