Why is there a charge here at netflix?

I just redeemed the card and then it came here that I have to select something here, but I just entered my pin with the 15 euro and that's it. I just want to look normally now and don't pay anything?

You haven't bought a subscription but only credit and you can now buy a subscription with this credit

It's in green up there. You have added money and can now use it for one of these offers.

I mean, the answer is in the picture?!

So then I don't have to pay per month? That goes away by itself again oda?

Subscription is a regular payment, in this case every 1 month

Subscription to Netflix costs monthly, which is 12.99 euro for one month!
If you want to continue looking after a month, another 12.99 euro will be charged.