I'm getting mail from immigration how I can tell them to change my address ?Tell your bank, credit card provider, driver licence, health card, work place.etc etc
Nothing else the thing is I'm just worry this new to me and it was working now is not even when I use my UCI number....I'm not trying to achieve any.I don't understand what else you want to achieve? As a PR just change the address as suggested. Ecas is of no concern.
When I was PR, I moved several times and I never told immigration anything..