There is no pattern, tricks and tips.... Its all about luck

I've already have my bushmaster ACR (30days) because i spent 100 spins in different lottos like kris superv, elite ak, m37 stakeout, spopx, kris v silver, dsr rusty, RD awm, ak silver and tantal but STILL no luck.....
Imagine that i spent 2,400 ecoins for all this lottos but still no luck???? but i have i permanent lotto weapon which is elite m4a1
Screen Shots of my UNLUCKY account:
[IMG]http://i1225.photobucke*****m/albums/ee383/ewankho12345/Crossfire20120805_0000.jpg[/IMG]
[IMG]http://i1225.photobucke*****m/albums/ee383/ewankho12345/Crossfire20120805_0001.jpg[/IMG]
[IMG]http://i1225.photobucke*****m/albums/ee383/ewankho12345/Crossfire20120805_0002.jpg[/IMG]
[IMG]http://i1225.photobucke*****m/albums/ee383/ewankho12345/Crossfire20120731_0003.jpg[/IMG]