[Basz]

Just got of the phone with my creditcard-company. They took on Oct. 2 more than € 900,- in illigal transactions. And a lot that were blocked.
They made some more Oct. 3.
Luckily you're insured as long as these transactions are done without a pincode.

But be ware! The card-information from 66.000 people are stolen. So if they didn't use your card yet, they might use it in the future. So I would advise evryone who got a mail from Kartenhaus that they block their card and apply for a new one.
That will only cost a week and this fraude will take more time till it's solved.
It's up to you, but better safe than sorry.