Got Fired

So I’m working on a 3rd party payroll and yesterday I got a call from them that it’s my last working day in Oracle and I don’t have to serve my notice period. They told me that their client (Oracle) emailed them and informed that my project got over. I got a little suspicious 2 days back when my manager asked me to submit my laptop for some security testing and said that i will get it back after 2 day. Everything was fine I even got my salary increment letter the day before yesterday (17th). I’m shocked I haven’t got any answers from anyone. I tried calling my manager neither is he answering my calls nor texts. I’m super frustrated idk what to do.