ONGOING BAD SERVICE FROM CELL C

Once again i still waiting for Cell C to come back to me in writing regarding a account problem. The only mail i received is a spreadsheet that make no sense. I did not received airtime or data but was invoice for that as they blocked my line due to this problem that is now going on for 3 Years. Cell C does not even have the decency to reply to my Lawyer letters, but keep herrassing me to pay. They never stop invoicing me since my contract of 24 months came to the end and i never upgrade it again due to the bad service from Cell C. The one mail i got his week is making no sense and with a bad attitude just said there is still a balance outstanding... Problems do not get sorted out due to their BAD ATTITUDE they have got towards their Customers. I will never ever promote or refer anyone to sign up with Cell C