Help - need expired newegg promo code

Sorry if this is a repost. Other one I tried to post not showing up.
I bought a Samsung 840pro 128gb ssd @ newegg yesterday. In my haste, I forgot to apply the 5% promo code. They tell me that they can't apply it unless I can tell them what it was. I can't remember it exactly. It was Cybermday5 or something close to that.
Does anyone happen to know what that code might have been? I have looked everywhere for it & cannot find one page with it mentioned.
Thanks for any help you can give.