VERY POOR SERVICE FROM MTN

I was ****med out of R13300 by persons pretending to be from MTN ***** Department. Tried to report it by calling 135 as suggested online by MTN. No option that says report *****, cannot get through to any person to speak to, only computer generated prompts. Went to a shop, they showed me how to speak to a consultant. I called 135 again, spoke to a consultant, they said they don't have an option to put me through to ***** department, asked to speak to accounts, line went dead. How does one resolve a ***** case when you cannot report *****, cannot speak to a consultant from *****, cannot get through to accounts???? So the R13300 is now just going to be deducted from my account? with no feedback from MTN?