What is the logic behind the IP ban? 

First of all, this is my new account that is banned for "linked account": https://bf4db.com/player/495795476

Now, at the first place I appealed for my ban because I did not cheat at all but couldn't prove it because I didn't have a video record. I understand that because I wasn't able to provide a proof. Then I used my old account and it got banned for linked account and I said "okay, these account have the same ip at the same time and they said that is a ban reason" but now, my new account is banned for linked account again. I do not cheat, do not use macro, do not use any external software but still getting banned. If this is a policy to ban an ip forever, than I want my money back because I paid for that account. Or if you do not have that option, explain to my why a new account gets banned  for a "linked account" that is used before that account. If you are banning an IP, show a logical reason for that. Or tell people to use different IPs on different accounts before arbitrarily banning them.