Lucky Cat Bingo: Lucky 7's Event

This is the third time I've left a message here telling you that the challenge in Lucky Cat Bingo 7 isn't giving out bingos as there is NO box to click on when you get a bingo.  And now, there is less than 24 hours left of this challenge .... how are you meant to play the challenge when it won't let you claim a bingo and have the chance of winning the two cats and tokens etc??  I do hope you are giving everyone that has tried to play this challenge, including myself, all the first prizes as we've ALL put in time and energy to try to play this challenge.