Hiring manager reached out and never responded after initial contact?

I’m an emt and was contacted via indeed email by an operations supervisor, this email system is a bit wonky and so I wonder if they never got my reply.

So I replied via the email and didn’t actually see a message on indeed messages despite it being an email.

They never responded.

I tried reaching out a few times, nothing.

I tried re applying and got rejected.

I’m not really sure what to do as I really want to work for them.

I could feasibly pull the old going in and asking if they’re available?

Any ideas welcome - thanks yall!