Incorrect Billing - No contract

Despite months of my complaint being with Vodacom Customer Care Dep there is still no reply. I have sent my emails to them but I only receive an auto reply. When you call their customer care line 082111 the consultants inform you to send an email to [Email Removed] But you get no joy as they don't reply to emails. I am paying for a contract that I never renewed and had to pay over R3000 just to keep my line open. Please can you get back to me with regard to my complaint.