Unauthorized Debit orders and huge charges

I have a problem with Nedbank, i have been with Nedbank for over 2 years.

I now look at my bank account and see that there are 3 amounts that have gone off my bank account.

I cant afford these transaction going off and i need that money.

R60.52 - NRB ADDITION ACCTING USER FEE R182.59 - NRB ACCTING SUBSCRIPTION FEE R205.78 - NRB ADDITION ACCTING COMP FEE.

For what i dont understand and on top of that my bank account goes into a negative balance very single month for what i dont understand as my month charges are included all the time.

When i get paid then i have to loss on my salary every month and it isnt small amounts.

Can someone please assist me on this and explain to me why.

Thanks

Lee-Anne