Banned from online Battlefield 3 servers for 'hacking' 'aimbot'

Michael here,

I cannot connect to any servers. Once I try and join messages and errors pop up, Error banned/kick reason hacking/cheatin or aimbot.

I played about 250 hrs without any errors,  then stopped for 4 months and decided to give battlefield another go, and errors occur. Frustrating because I havent done anything between those 4 months that even relates to battlefield 3,  iv been banned when I haven't even been playing, neither have I cheated, hacked or used an aimbot because I just honestly dont know how and dont see the fun in that anyway as I am a fan of BF3 and looking forward to BF4. Just looking for entertainment and playing with a couple of friends. Don't understand why I have been banned and kicked please let me know how I can get back playing asap as I have done nothing wrong except help BF3 community.