I’m seasonal and I guess I got terminted?

Going to work this morning, one of my blue badge coworkers calls me on my way and tells me they’re not letting seasonal in. I see some coming out as I’m going in, I go into the building… yep my badge isn’t working. Awesome I got let go just as I felt I was progressing in there, security asked for my badge and told me to call some number and hit option 4 for employment verification. Man, I was just asked if I wanted to train for pg a few weeks ago and then that happen I know I still wasn’t safe regardless I’m just bummed. So what’s this employment verification thing? I tried to call but they’re not open until Monday and I have to give them some code..