 Epic Games sold the new AAA game Avatar Frontiers of Pandora for $289. Hooray! That's way cheaper than the $70 price the rest of the world paid. But wait, Epic then took back the game and started refunding customers. The posted price had been a mistake. Instead of $289, the game was supposed to be $2,899. But there's a strong argument to make that under Philippine law, the buyers can rely on the posted price of $289. And thus, it was illegal for Epic to unilaterally refund and nullify the sale. Even if the posted price was a mistake, Section 19 of R88792, the Electronic Commerce Act, says that in case of an error on electronic data message, the address C, in this case the public, is entitled to regard the electronic data message, in this case the price posted, as that which the originator, Epic, intended to send and to act on that assumption. Hindi ko alam na mali, I bought in good faith, valid sale yun, na hindi po'y edeng basta-basta lang i-cancel.