Cash dispensing shortage

I sent myself R250 to withdraw at an ATM at protea glen Boxer store due to me not having my card with me. When I withdrew the money only R150 came out instead of R250. I immediately reported the incident. Today I got this message "Capitec: Your dispute has been declined. Reason: All funds dispensed at the ATM. Therefore, no correction can be done. *** . For more info, (1/2)" I called again and asked how this resolution was made because I told them what happened and by them declining my dispute it means I am lying which I was there and I know exactly what happened. The person assisting me said the money could have dispensed after the machine reboot. This is a Capitec problem and not my problem. She said she will transfer me to the complaints department and the phone just cut whilst I was holding. It might not be a lot of money but it's my money and I want it back. I am taking this issue to the ombudsman and will be changing banks. Clearly you **** your clients. Today it's R100, tomorrow it's my salary hai.