late sat scores-HELP!

<p>I just checked an email from UW, and they say that they couldn't find my test scores.
I sent the scores on December 11th, but collegeboard sent the scores
on the 16th.</p>

<p>The deadline for UW is Dec.15th, and they say that they only accept tests taken before December. I'm worried to death if this affects their decision. Will one day matter?</p>