DMV Question - Help Needed With Appointment

Long shot, but here it goes…

Got an apt tomorrow to do my license and registration since moving here a few months ago. Problem is - outside of a confirm your appointment text link, I have no record of this appointment. No e-mail, no reminder, nothing. Also - for some reason I didn’t keep track of which location I made the appointment in - stupid I know - but is there anyway to find this out? Website says no cancelation or modification, which seems strange, but also makes me feel like there is no where to get record of this

Worried I waited a few months for this and will blow it tomorrow. Any advice??