Double Purchasing?

When I paid for KI I was not really sure what I was buying into,
since the full edition was not showing its price like the other two.

I going to purchase the full edition so I can dress Jago in
Pink spandex, but will I have to pay all over again?

Will KI deduct the difference, and treat as an upgrade?
Will the double charge me?

I’m not sure I follow your meaning but it sounds like you purchased the season one combo breaker pack and want to upgrade to the ultra pack so you can have retro Jago?