SOLVED:
so after trying all the information that Hannah provided, nothing worked. The support number seems to not exist or i cannot call it, redirecting me to the playstation network for some reason, and the link provided also did not work.
by a matter of chance and fate, i have made an account here at this link https://account.sonyentertainmentnetwork.com/ where i pretty much just linked my sony account with.
Make sure that two factor authentication is disabled from settings-security.
i waited around 5 minutes, then i went back to my camera, opened the application list, connected to my home wifi, logged in on "my sony" and i could log in! then i went in the application list again and selected smart remote control update, to which it automatically updated and it worked flawlessly afterwards.
it is an understatement saying how much im glad that i can control my app using my smartphone, as it is a super practical thing to have handy.
it seems that there is some kind of bug in sony's network that doesnt allow you to login on your camera unless you are logged in and registered on https://account.sonyentertainmentnetwork.com/
