Assalam wa allaikum

I need your kind guidance related to short service commission of Pakistan Navy. I have cleared the E-test the next step is personality test. When I cleared the e-test they stamped my admit card and wrote a date for personality test. But today they only collected our bio data form and cancelled our personality test. Furthermore, they told us that you will receive call in 15 to 20 days if your shortlisted for personality test and if you didn't receive call it means your rejected. It's requested to provide your kind advice in this regard as I am confused and can't understand the situation. Why will they reject candidates at this stage as they have cleared the test.