Board Thread:Game Discussion/@comment-37741609-20181228044702/@comment-33029580-20181228112739

It doesn't matter in which day (or days) you didn't collect. You will lose the reward of the last day  (or days) of the month.

What matters is that until the day before the last of the month, you can recover so that you can collect the biggest rewards. See Baboabrm's advice, or search other videos in youtube, there are several showing how to do it. But don't leave it to the 31st, you won't be able to recover nothing in the last day of the month...