Unauthorized debiting and no proof of indebtedness

Pathetic is even a compliment no communication after several complaints no summons no itc listing no proof of me owing after several requests still using the same number issued to me in 2013 when contract was taken out, number has been moved over twice with contracts with mtn and they still have the audacity to debit me several times within this year they cannot prove that I owe them on my previous review they state an attempt to contact me however no correspondence at all, utter lies and incompetence even if I was owing how would I still be using the same number and you attempt to claim 6 years later get your house in order as per regulation this would be prescribed if I was owing you but I do not acknowledge anything