I have uggs that I wore a couple of times when I first got it and stopped wearing because it just didn't work with my pants. They practically look unworn! The thing is that it's from 2007

I know... it was ages ago and I don't know why I didn't return it then! The sticker is still on the underside of the box but it was from so long ago, would they really like it back? I am a bit ashamed but I don't want to be embarrassed if they turn me away. Would it be less embarrassing if I asked for store credit instead?
I tried to bring these to a consignment store but they said the wouldn't take it because of some product recall but I googled it and found nothing... maybe the girl didn't know what she was talking about.