Unhappy [Q] Not sure why my Play Store country still Canadian one?

I have two emails with same address and informations, but my main one when I switch to that I don't see any of US's apps, but when I switch to the other one I can see all apps from US's store.
I tried clear my cache, remove and readd the address and still seeing the same?
If I don't login and try refresh playstore link I can see Pandora app but once I login then I don't see them anymore?
Anyone have the same problem here?