One of the most controversial areas for Steam and similar services is their ability to pay back. For a long time, Steam had hidden the possibility of a lot of tricky bureaucracy or completely ignored it to offer customers that opportunity. Something that ended with the Australian state that Valve sues.
Fortunately, it has become much better and now Epic Games Store also announces that they will have a similar policy for their refunds. You as a customer are therefore entitled to a refund 14 days after purchase or if you have played less than two hours for independent reasons.
If you have pre-booked a game, you can also request a refund during the entire booking period, or until the game is released in the beta version or in the completed version and then applies the above policy. Hopefully this contest will eventually encourage a more serious policy when it comes to scoring customer satisfaction points.