How does Binance Pay work exactly? Specifically for something like Play-Asia.

Hey guys, so im kinda new on using binance, opened it a couple months ago and have acquired some payments by way of it that i have used to buy stuff after exchanging it for my foreign money by way of p2p, what im wondering right now's how exactly how binance pay work for websites, or if anyone right here has expertise particularly with buying from play-asia with the tactic, im fascinated with importing a few jp only video games by way of the location and its both utilizing binance pay instantly, or exchanging to my foreign money and using a debit card (which i feel loses me around 5-10$ after trade rates compared to the amount the binance pay choice says), how does the transaction go exactly, is it automated after linking accounts or one thing like that or would you need to send the usdt to an specified account? Recognize any input on this.