Vodacom querry.

I am struggling from 2015 to get my account sorted. I have been billed for 5GB data usage on my daughter's tablet. I suspected the account was hacked, but since then and after numerous attempts to get proof and evidence from vodacom that this account was not hacked, Vodacom only responded with a reply " this account was not hacked". Since then i have not paid 1 cent towards this account untill Vodacom can give me a acceptable response or solution. This situation now has an effect on my credit status which i believe was not my fault. I want Vodacom to write off this debt and clear my status. It is unacceptable that this is going on for almost 3 years without a solution. In the meantime i have dealt with more than 4 different attorneys , but none had any success in collecting the outstanding debt from me. It is even more unacceptable that i only get a phonecall from attorneys once every six months.