Charged multiple times

I have a problem, Blizzard charged me $791. It bought 9 copies of BFA. I was informed on the buy page that something had gone wrong, and to try again in a minute. So I did, nine times. Until i was informed by a guildie that he had been contacted by his bank about a massive charge, so I checked mine and what do you know 791+ Canadian dollary-doos. I tried to contact support but the page is bugged. I tried to refund, page bugged. Please fix this if possible, I would like my buckie-bois back to spend on stuff. Please keep 1 copy of the game though :)