Rooftop Cafe - Rosebank. A serious complaint.

I booked an event for 40 people with the Rooftop Cafe. I paid the deposit on 22 December 2019 and had to, unfortunately, cancel the event on 26 December 2019. My cancellation was just a few days after paying the deposit. After several messages and emails to the manager, who deliberately ignores or avoids my messages, and is completely unresponsive to most of my messages. It is now 41 days after my request for cancellation and I have still not received a refund of my deposit. Is is quite soul destroying as it seems that the Rooftop Cafe is only in favor of financial gain and not completely ignores the needs of clients. If this complaint is on Social Media it will go viral and woul potentially be damaging to the business of the Rooftop Cafe.