Company cancelled service and not refunded to date

Jozi Vibes called me at 3 pm on the 21st September 2024 to say that he cannot send his bus out for my 6pm booking . It was my daughter’s 16th birthday party which was to be celebrated on the bus. Besides spoiling the entire event as we could not rearrange a venue. He has to date not refunded me. Now they don’t take my calls or answer my emails or WhatsApp.