I don't know why.
They obviously made a mistake when activating your plan. I think you'll have to contact fizz directly :(
To contact Fizz, go to: https://fizz.ca/en/faq/resolving-issues , at the bottom, there is a green bubble with a question mark, you can chat with support.
You can also use :
Whatsapp: (438) 393-5814
South Korea? You have the 60 minutes add-on?
It should work. You dial with the international format? +82...?
What message do you get?
It's working for other internal destinations?
I have an add-on program 1,000 `min.
Furthermore, I can't call any country from Quebec.
When I call abroad, the phone rejects the call and send this message.
"your current plan did not allow...."