In Recommended sports centres you could find verified sport centres by FlexiLiga players. There you could get a discount. When booking a court just say at the reception on arrival that you are from FlexiLiga , they will check to see if you are on our list. Be sure to ask for your discount when you arrive. Sometimes it might not be possible after the match.
In Other sports centres there are other options for you to play the games. Sometimes you could also use a discount there. Don't you see your favourite sport centre? Contact the administrator in your city. He could add it.