Every year my company pay the 13 month bonus (mentioned) in contract plus additional bonus depend on company performance.
This year, I only receive 13 month bonus but no additional bonus. Other employee received 13 month bonus plus 1 month extra.
When I complaint to my boss, he just mentioned the extra 1 month is not stated in contract and it is up to company discretion on who to give, if any.
He also refuse to give reason why I did not receive the extra bonus which other staffs received.
Can I file complaint on this issue?