If you are going to the Los Angeles or Cleveland concerts, here's the pre-sale information right from the tour's official Facebook:
Los Angeles/Greek Theater:
PSST! Here are the four (count 'em four) passwords for the Monkees' Greek Theatre tickets that go on presale Thursday @10am:
Presale Start: Thursday August 16th @ 10 a.m.
Presale End: Thursday August 16th @ 10 p.m.
Public On Sale: Friday August 17th @ 10 a.m.