Even if you do pay them anonymously, your IP will be recorded when you access/download from them. Case in point: Mullvad was forced to shut off port-forwarding because of torrent traffic on their network. Mullvad allows you to pay with Monero.
Don’t do it for the privacy, do it because having the server in a different country like the Netherlands makes it easier to pirate. For all they know, you’re just accessing random IPs in the Netherlands and all they see is HTTPS traffic.