Can you still attend a school that you have declined?

<p>Does anyone know if you can still attend a school that you have already submitted a SIR to declining their admission offer? I declined UCSD and now I am thinking that I made a mistake. I am thinking of calling them on Monday to see if they can reverse it so that I can accept their admission offer.</p>

<p>I know you can if you get a hold of them before the deadline, but I’m not so sure if you contact them on the day of the deadline (monday)</p>

<p>i am sure since it is on the day that SIR is due, you will be fine~</p>