“Hi guys
Hope someone can help me with this.
My boss told me that for prorated bonus for qualifying officers will only come in April.
I've check pac gov but there is no pb letter.
I only joined the ministry back in sep 2018.
Does this happen to anybody else? Or does PB for all come in today?”

--- SAR assessment period is from Oct to end-Sep. It is based on this assessment period that you are given a PB in Mar. So, what PB are you expecting to get if you joined in Sep itself, for less than a month of assessment? So, you are highly unlikely to get PB if you haven’t already gotten one before end-Mar 2019.