Unauthorised debit.

I took a R2000 temp loan in October is was then debited from my Salary, in October I took R600 it was again debited from my Salary, I had funds transferred in my account on 05 November, fnb debited R2260 for a temp loan that I did not apply for, when I tried calling the call Centre no 1 is available to assist because the call Centre opens @ 8, Funds were debited from traveling allowance and those funds are needed urgently