Alright, since I have very little concern/suspicion that you were cheating, I'll believe you.
Be very careful when using VPNs to connect to our servers as incidents like this can occur where our system will flag you as a duplicate account as the IP you are coincidentally connected to already has a banned account on it.
I'll unban you shortly, if you have any further issues connecting to our servers, feel free to contact me through forum PMs.
Appeal acepted.