The reverse is always surprising to me: as if blocking a credit card constitutes the ending of a contract.
In Europe, a contract isn't entered or broken by making or blocking payment. Companies will very succesfully have their contracts enforced, with any extra costs billed to you. Apart from leaving the country, you're not going to get away with non-payment.
Blocking the credit card is banking on the company not bothering to follow up, or (in case of company misbehavior), forcing them to show up in court and air their dirty laundry in front of the judge.
That's the first time I ever heard of such thing, and I've lived in a few European countries. Some European countries even standardized service payments on direct debit, which worst case scenario leaves a bank holding the bag for the debt.
And showing up in court has costs, which are not guaranteed to be covered in any award/payment order, and even if you win there is still the matter of actually collecting. If it's all a matter of a few hundred dollars, most businesses will just write it off.
Sure, but they are making these contracts with people not in the country in the first place
Hetzner turned off all access to my paid server due to a false-positive on their netscan/DDOS (literally it was tailscaled doing a netcheck) protection and equally incompetent technical support staff.
Can I sue them for breach of contract and subsequent damages? I moved all my hosting off Hetzner as a result, but I'm still very disappointed in their actions.