I'm not sure if this counts for steam, I'll explain in explicit detail.
If you make a payment through paypal. Gameforge doesn't ask you to save details or anything, you buy your soulcash and you're done.
Now let's say you accidently press top up soulcash, It will remember your credit card info WITHOUT asking to do so and instantly charge you without an email confirmation.
I changed my paypal password to confirm this, and clicking top up again STILL charged creditcard without me even signing into paypal.
Did some rigorous testing and this will happen 100% of the time. Please fix ASAP gameforge.
TLDR; Clicking top up with paypal will remember CreditCard info and charge it instantly without notice if you press BuyNow, it will open the paypal window and without you logging in it will charge you whatever you selected.

