You're done what? Playing a game that you already paid in full? They already got your money. You are the one who chose to engage in exploiting a bug. Have a closer look at the policies link:
https://eu.battle.net/support/en/art...o-iii-policies
More specifically, the last bullet under "Severe Violations"
Also, Warden:
With the amount of resources Blizzard has devoted to the development and maintenance of Warden, do you think it is not a trivial task to see that a single key has been held down for a 5 hour period without any other keyboard or mouse inputs sent to the operating system?