It is not the memo that is going to make the difference nor changing the manager, first start making the staff accountable and not parchuted green berets with an attitude of a disgruntled civil servant.
Actually if it was not for the manager, many of us would never get our tickets on time, let alone get one period.
Bin Michal and those sultry scarfed ladies, who hide behind their religion as a pretense not to serve, and you will see things improve without an effort.
But as soemone said earlier on this forum, get an automated system and save yourself the hastle of all this crap. Can't believe how far behind GF is.