Registered a long time ago to the site, decided to try out the sportsbook.
Placed a bet with the odds boost and it came out without the odds boost.
Message support and they tell me "you used odds boost on same sport less than 24 hours ago, it resets in 24 hours"
I show them a screenshot with the support chat window and the still-available odds boost.
Their reply "There is no problem with our site, please clear your cache or change browser"
Thanks sportsbet, I am very happy that there is no problem with your site, thank you for your kind suggestions, so I post here to suggest to all users to not trust any odds boost that comes up within 24 hours of your bet, it is a lie. How do you know if 24 hours have passed? Please do your own record-keeping. It is not the site's problem.