My bus leaves at 12:45 am are ticket counters opened at night so I can pick up my ticket?

It should be open. It was for me. They also have electronic kiosks

I have called the bus station and no one picks up

there are electronic machine so you can print them out is like the airport that you don't need to go to the counters.

Yes 24 hrs

Avoid the counter. They are rude and clueless. Don't even attempt to be polite.

Call the bus station.