However the good news is that Blizzard has identified the issue and has since announced that they’ll be working on a fix for the bug and will be removing seasonable bans from players affected by this bug. “We recently identified a bug that, in extremely rare cases, can cause players to lose their skill rating progress and receive a seasonal ban from Competitive Play without any prior penalties for leaving early or being kicked for inactivity.”
“In the meantime, we’ll be removing the seasonal ban for all players affected by this bug as well as restoring their skill rating. To date, this bug has impacted fewer than 200 accounts, but we’ll continue to monitor for additional occurrences and provide assistance until we can implement a permanent fix.”
Blizzard does not have an ETA as to when this bug will be fixed, but in the meantime gamers who are affected by this should have their bans reversed.