This hot fix appeared on the PTR as build 21343 and 21345, but build 21348 went straight to the Live servers.
Official patch notes
UPDATED: MARCH 23, 2016.
- Bug Fixes
- Fixed an issue that could cause an account to be incorrectly suspended.
- Fixed an issue that could cause Recruit-A-Friend benefits to not show up properly.
- Fixed an issue affecting some regions where players were unable to open a ticket through the game client.
- Official patch notes