ok so i have a fido canada phone with a sim card from an deactivated account and it doesnt have any plan on it so could i just go get a prepaid card and hook it up to pay as you go or do i have to activate the phone with fido and pay a fee????

or could i get some type of sim card that allows me to do pay as you go
???????

PLZ TELL me how this all works??

I would go see Fido...

My best guess would be that you can just buy a new prepaid sim card.

But just go see FIDO