Impossible Service

I was send a cash send from an Absa account on the 13th of September and when I went to an ATM I only received half of the money. Tried to report it at an Absa branch in Wonder park Akasia, the lady told me to my face its impossible that an atm could give my money short. Requested the sender to follow up for me she was told that she needs to bring a receipt from the atm as its impossible that this could happen. I've worked for the bank so many years I've never heard such bull****, you must never ever have employees who think its impossible to assist clients. I'm appalled by this behavior no one even requested for the atm number or any information from me such disappointment