Immediate transfer aborted, can I get legal problems?

So hello first, I bought myself 2-3 days ago Minecraft (the Java version) via an instant transfer. And on the last day I canceled the payment due to eBanking. Now I thought to myself that they simply block my account and therefore I just had to buy the game again, which I wanted but just stop with a Paysafecard. But now I still have access to the game and I wanted to ask if I can get in trouble, if they will write to me or if I have to wait there 1-2 days before my account is locked.

Do you really get the game before you pay? You will have to receive a reminder and pay for the game. If you've entered incorrect dates, you'll get an ad.

Would I pay extra for the reminder?

Yes, I think so. That can cost between 2.50 and 10 euro.