Board Thread:Game Discussion/@comment-27170954-20191205171759/@comment-43409776-20191206152101

there were methods, where you could collect the last monthly or all monthly Bonuses, if you choose the right day and force quit the app at an EXACT point at startup - involving time zones. Seemed very complicated and fail prone.

So I would not exclude, that there would be a way to exploit M$, if it would be personal timezone based.