Plutonium

then what do i do?

i was playing mw3 with a vpn so i dont get ip pulled or sum thing after playing i left the game with alt f4 since when manual shutdown it could take me 10 minutes to close the game even give me the blue screen of death, i went on yt to watch videos and etc, after like 2 hours i went to play again and my a account was banned so i made an alt and this is my alt cuz i thought maybe it was sum sort of a joke and i went on my alt and it increased my ban time, can you help me out??