Cancellation not done...

I accepted an offer to a lady that phoned me from Telkom, the next day I phoned to cancel the contract that has not yet started no call until today, Telkom service is so pathetic I regret why I even listened to the lady who assisted me and also that is why I decided to upgrade with their competitor coz woow TELKOM SERVICE IS VERY BAD........I want the profile cancelled as in yesterday or else I will reverse my money should you try to debit.