Bacou
The point is that it used to be contractual for us too! Sadly, in Hong Kong contracts are pliable....
Have some sympathy...your support and understanding would be appreciated....spare us your aggression...we don’t need any more of that...our cup runneth over!
Try to imagine having to worry about receiving this part of your pay each and every year!
Even the ex gratia payment would have been a fraction of what you will be receiving. Lucky you....now go and pay your tax bill.