Hi,
The information about what caused the violation will not be released by EvenBalance as PunkBuster software has to remain stealth and not reveal its ways in order to prevent cheat coders bypassing its detection routines & scans.
In the stated case, PBBans has worked as expected. And I hope this will be a proof for everyone that an appeal can be successful.
Anyhow I would like to express my personal sympathy towards you and congratulate you for your patience, which has finally paid off.