SAT subject cancellation

<p>I took an SAT subject test on Saturday (11/4) and it is now the Friday after (11/9), and I didnt send in the cancellation form
Collegeboard says the deadline for cancellation was Wednesday, and I cant call them because the office is closed for the day. I won't be able to call them until Monday, possibly Tuesday because of Veterans' day
What should I do?? Will they accept cancellation forms later?</p>