Why do I have to pay subscription fee?
You only have to pay for the package what you purchased!
When you made your purchase, the offer you had at the pricing table, that is the only thing you have to pay. If you have to pay a subscription then you purchased a package with a subscription fee. We change our pricing table from time to time, but that doesn't change the deal you had on your package.
If in our current pricing table you can't see a subscription fee that doesn't mean you purchased that package.
If you want to see our pricing table and the available deals, when you made the purchase, you could do that for example here. You can also visit your Orders page and see the name of the package and the details of the deal.