Is it wrong for me to ask a reference from them?

Urgent please help!!!

I'm currently applying to uni and for one the applications I need to list my extracurriculars along with the reference information. I didn't realize this would be a requirement and I'm kind of stuck now because I never joined any clubs or teams during high school. I was going to join a club out of desperation but the one I was gonna join postponed all meeting till next month...

I have some volunteer experience at the Christmas market that I'm considering to email and ask if its ok to use them as a reference, but I don't know if that's really alright to do considering it was only two day event that I helped around 20 hours all together, and plus the supervisor was kind of doing her own thing all over the place so I'm not even sure if she'll remember me (though we did meet and talk multiple time). I can't really think of anything else atm and my other volunteer work is much older, and also random events so nothing I helped with long term.

This application is due at beginning of February and I don't have anyone I can ask about this rn, please help or if you have any suggestions in general please let me know!!!

Is it wrong for me to ask a reference from them?
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