So I called york
No need to actually accept offer, just go enrol (
http://www.registrar.yorku.c a/enro.../enrolment.htm)
my account was blocked from enrolling bc i needed an academic advising session ( which on the visiting students site it says we DONT) so I got them to fix that after spending forever on hold.
THEN my course was full... so I had to register for another one and all this crap but not going to get into that.
Basically just go to that link and enrol and pay your 450$