Dissatisfied with Vodacom's handling of my ***** cases

Went to vodacom Maponya to report *****- an unknown person used my details to open an account and purchase a phone-they could not assist in blocking the account (to prevent further debit orders on my account). The lady who assisted me told me that they can't do that, they need to investigate first which will take a minimum of 21 working days. This is doesn't make sense as there's an urgent need to block the phone that the ********* is using also, we'll before the next debit or that might negatively impact my credit profile. This is uncalled for, im very unsatisfied. MTN handled this very swiftly and urgent.