443 should get you through.This is so frustrating. My life is in hold because of immigration plans.
Took ielts 3 times last year and did not get clb 9 for 0.5.
This year I finally got it on february 1st, however my certificate arrived on feb 22nd, one day after the last draw...
I am sitting on 448 until 19th, which is my birthday. After that i will be 443...
ITA is just going to be the start mate,
there is even longer waits and frustrations ahead.
Many times in between you will start hating to go to Canada.
But eventually you will get PR, most likely with that score( unless some serious fraud)
Which I am sure you have not. So end will be good.