The oqueue dev places all bans in the region folder of the oqueue addon if he requires to globally ban a battle id from using the addon.
- If you go into your oqueue folder you can find a folder named regions.
- Within the folder will be two files called "realms.eu" and "realms.us."
- Pick the file that if is to your region.
- Open the file with notepad.
- The file will contain a bunch of realms. If you scroll to the bottom, you'll find the battle ids of the people banned and the reason they're banned.
- Find your battle id and just delete it from the file.
- Save the file and you're unbanned!
Sadly, you'll have to do this every time a new update is released for it that you install.
I don't know if this is a repost or not as I searched and haven't found anything.