Got a pricey deal from Mr Price

I've placed an order for sportswear via the app, paid and it showed my order has been cancel. I got the bank notification for the transaction but not the reversal because my bank statement showed the money hasn't left. Repeated the transaction only to get the same message. On Monday both cancelled transactions'money was deducted and there's no-one I can speak too, no response to my web inquiry and email. This establishment cannot be trusted.