A sports bet might be canceled or paid back with odds 1.00 for a few reasons. This can happen if the odds were listed wrong, the team names were not right, or if the bet was made after the event had already started.
According to OlyBet rules, if an event has been postponed, interrupted, or stopped, and not finished within 24 hours since the interruption, then all bets on that event will be returned (calculated with odds “1“).
If the game was postponed or interrupted but has resumed within 24 hours, all bets on the game remain valid.
The rule doesn't apply for Tennis matches: If a tennis match is interrupted, has not been completed on the same day, and is postponed, bets on this match will stand until the end of the tournament in which the match takes place until the match is over or one of the participants resigns.