I got the same confirmation letter. My date was until a decision or March 7, I assumed it was 1 day before my daughter's passport expiry, but not completely sure if that was the rationale. I was hoping to get BOWP at least for a year . If I do not get a decision(either BOWP or PR (AORJune 21) before March 7, I will apply BOWP again. It so not in our control!!!
No I didn't get any such letter when I applied in June. I only got a confirmation of application submission which mentioned that my application was received. I sent this along with my AOR as a proof to my employer and continued working on implied status until October 23rd when my BOWP was approved. My bowp is valid for a year (until October 2021). You can call IRCC and inquire what this is about. I am not really sure if this is a new thing!?!@legalfalcon @RAMAAA91 @Mshimpi @Angel1113 is this something new here or you guys have also received it?