Monthly benefits are received on a particular day of a particular week. It would be more helpful if it was a particular date each month was used, such as the 17th rather than the "3rd Wednesday of the Month". I looked through 2014 and found that the 17th misses just two months for that week. On those weeks, deposits could be the following Monday. In 2015 it is three months. But then it should recycle for future years. It gets very difficult to spread these benefits over more than 30 days. And bills do not accomodate these fluctuations.
The same process can apply for "any Wednesday of the Month".