Telkom charges

Telkom added a subscription to my account without my consent and then charged me more the next month on the account and added an arrears amount to my account during the month, and only feedback when I call them is that they have escalated the matter, giving me no turnaround time timeline, saying only that I need to pay for their mistake so that I will be refunded for that mistake and still then not being able to give a turnaround time. Telling me that the matter has been escalated with no clue when it will be resolved but still adding more charges that you say I must pay is not a solution, why must I chase Telkom when I did not make the mistake. Why am I being charged for Telkoms errors.