Paying but not receiving data, airtime. Blacklisted as I stopped paying. No resolution

Vodacom account data & airtime renewed without permission. Number partially assigned to another person (unknown to me) in a different city. Account was eventually paid as I had no joy and was being harassed. The airtime and data I should have received was never loaded - it is now 12 months later. After numerous calls, store visits, emails this issue has still not been resolved. I refused to continue paying this. No I have been blacklisted with Credit reviews!