How can you help me? By providing actual help

Shockingly bad non service. On 30th March I tried to withdraw R300 via the careless cash feature. I used a stand alone ATM in Cape Town Cbd and went through the process, when the machine was about to dispense cash it went into device recovery mode and did not give me cash. I waited about 10 min before ATM came online again but was advised transaction was completed. I tried to report the incident using the app but received system busy error. Tried calling but could not get through. Eventually later that night I got help on the fnb chat and was given a form to fill out and send to card disputes. I submitted the form along with evidence including location, transaction details and picture of ATM error. I have had no feedback and no further help. Now R300 might not be a fortune but this month it's the difference between eating or not due to moving. So FNB your slogan how can you help me? Please provide some help so I can get my money back as soon as possible.