Ip address / Vpn?

I have the following problem, at that time I was blocked on various portals such as Markt.de Quoka, etc. Now I have a new laptop plus an active Vpn and still I'm recognized and blocked again immediately? But how can that be? Everything must be covered up by the subjects

How do you come to the conclusion that the block is based on the IP address? Your IP address is not a constant feature. The block is therefore done differently, namely on the basis of your personal data. If you create a new account with a different email address, you are a different person from the point of view of these platforms.

VPN is called Virtual Private Network. Network means network. Is it called "the network"? No. So it doesn't say "the VPN" or "a VPN".

No, I registered myself with Vpn and with a different e-mail address

Nothing brings anything

means exactly?

Have you deleted all cookies on the platform?

I even have a new laptop. New mail address, all other data specified differently, Vpn activated, cookies deleted and still I'm recognized, I ask myself what

Contact support and ask under what circumstances your account can be unlocked again.

Is there a new Windows installation on the laptop or was it copied from the previous computer?

I would just try a different browser

Now I have a new laptop plus an active VPN and am still recognized and blocked again?

there are two main reasons for this.

You use a (free) VPN with overcrowded servers whose IPs are preloaded.
You have exported the data from your old browser to the new one.

everything must be covered up by the subjects

VPN ≠ anonymity, because nowadays your provider assigns you new IPs / a new prefix every time you restart your router and tracking (often) still runs via cookies and tracking pixels.