Atlantis Dunes Sand boarding agency - Dylan

I booked with 1 hr ride with Sand boarding Capetown, I had my dates mixed up when I got there I was told I cannot be helped if I want to ride I must pay R500 per person and I was told they are fully , I had already paid 1600 for myself and my friend, requested if I can be given a voucher for another date because I don’t stay in the Western Cape they refuse point blank, I was told to email a guy by the name of Dylan, he was so rude he told me no refund, no voucher.. be warned of such ****mers..