Consultant s lie about collects and account incorrectly debited - Consumer Complaint for Vodacom - Head Office

I cancelled a order within 7 days as they incorrectly debitted my account.this happend in June 2019 have phoned in reguraly(weekly)and now phoned in daily as they do not pick up the parcel just to find out that the consultant are lying when they tell me that they organised the pick up. The consultants has also put the phoned down when complaining about their poor service. Can someone please help as this is not fair.