Installment payments vs scammers?

I’m totally grateful to Pimax team for allowing us to make such payments easing stain on our wallets, but what does it do to protect from scammers worldwide? Say, I pay first 400, then block my card and make a new one? Did Pimax team figure any drm mechanics for this case, or will they take legal actions against such residents?
Asking because I’ll be making a YouTube review soon, and want to say that there’s a way for buying if you don’t have enough money, but audience may see this as an invitation to 50% discount fest.