theft by staff

I'm asking for help in this situation on behalf of my mother she has been a customer of nedbank from 1974 till date and she has investments with them till she had a problem with her cards and she went to jabulani branch and 2 days after R1500 was withdrawn from her account it was on the 26june 2015 and we noticed on the 29 June 2015 at Westgate branch and we were told that she did not have the sms notification and she will be penalized for that so we did the sms notification then she had to do the transfer of the money that she got from momentum to pay school fees so she went to jabulani on the 8 july 2015 then on the 12 July while she at home with both her cards R1200 was withdrawn from her account again and she was coming from jabulani again and this happens only when she go's to jabulani and do some transaction this will happen so I need ur help cause I believe that the staff of jabulani are the ********* behind this now she is afraid and stressed because of this please help and ca<br> <br> <br> <br> <br> <br> <br> <br> <br> she will be penalized for that so we did the notification and then she took out the momentum policy which was R20 000 to pay for my little sisters school fees and it was done at jabulani on th