Winter Grades Update

Hello,

Recently, I’ve been emailed specifically by the UCs to update my Winter grades 2018 by March 31st, 2018. But the problem is that my college’s quarter ends only at March 30th and the grades will only be available a week after that.
So I replied to the link they sent me and told them that my grades will only be available after that March 31st and that I will let them know my grades as soon as they are out.
But I heard the TAU is closed by April 1st, so I was just wondering if this something else I should be doing?

Thank you