I kinda messed up with my PID and GUID stuff when applying. I used http://steamidconverter.com/ and everything was looking fine but when I try join server it says that I'm not whitelisted. I made some investigation and figured out that I applied with totally wrong PID and GUID. So after that I found this page http://www.dayzrp.com/upgrade and corrected the PID and GUID and try to join the server again with same results. I investigate some more and it appears that in the http://www.dayzrp.com/whitelist page my DayZRP mod GUID is now correct but the standalone GUID is still wrong.