Atm fault

Please can someone urgently help with my problem. I tried withdrawing money at one of your atms and the money did not come out in full, nor has it been credited back to my account. The staff at the sandton city branch were really efficient and really tried their best to help me, but i am out of pocket and need the funds urgently. Please can the saswitch department rectify this asap. I did complete the form at the branch. I need to make urgent payments and cannot wait any longer.