Can't purchase Season 3 PC

I had S1 and 2 on xbox and it came over successfully. Yesterday I attempted to buy season 3 ultra edition. Took me to the Paypal screen. Said transaction complete. Went back and nothing. Called Paypal and nothing went through. Now when I choose to buy the ultra edition the buy is greyed out? Happens to any edition I choose. There is a add profile option but there is no place to select Canada. Help anyone?