Booking Website is broken, double debit, passing the buck. AVOID!!!

I tried booking tickets for the Lion Park on the travel rewards program website. Something went wrong during the booking process right at the end after typing in my credit card details, and then I got redirected to the main page. There is now no booking whatsoever, but a double debit off my Avios credit card for the booking I tried to make totaling to R1460. I inquired on the FB page and was then asked to call ********** which I did and held on for 15 minutes after which I gave up because it's costing me even more money to sort out the *****-up on behalf of Avios' booking website. Please contact me urgently to sort out and reverse the debits on my Avios credit card!