I lost my lvl Boo Nose

I made a new profile in my cod and used another key in it and when i logged into the other profile i found the other one was also change to the new key and i lost my lvl now its new key it was cracked anyway so i dont care i was lvl 47 i hope i can get my lvl back plz help me my ingame name is BooNose i am on the server most of the time so i hope u can help me plz and i have some admins on my skype as a proof like mada and the lord