Operation Mincemeat Pre sale

About two weeks ago I signed up for pre-sale for Toronto Operation Mincemeat on the musicals official website. Today I got an email saying that pre-sale starts June 2nd and ends June 6th. I'm just curious as to whether mirvish will send a pre sale email very soon or this is a separate sale on the Mincemeat website. This is my first time signing up for a pre-sale on a musicals official page.

Did anyone else sign up this way?