These guys must just be complete idiots. They manage to get the price of a Canon Rebel T6i to the top of Google's shopping list, sure. But they will never send you what you think you're buying. Cancel your card! Hopefully you're reading this before they try to charge you!
If you contact your bank, alert them of the fraud immediately then cancel your card to get it reissued. Better than dealing with a $600+ charge that you will have to dispute to get back.