I missed my lab, and registration is closed, any options?

An email error meant that I didn't see one of the labs I'd booked had been confirmed, and stupidly I didn't check the website, meaning I missed being able to attend it. I didn't notice this until 10 minutes ago, which means unfortunately registration for tomorrow is closed too 😔

I've been hearing a lot on Twitter and other places that the labs are largely under-booked anyways. So knowing this, are there any options to be able to register for the session tomorrow and be able to get in if its not full?
I missed my lab, and registration is closed, any options?
 
 
Q