Removing license key without having an access to my old computer

Hi,
I have two license keys registered, but need to remove the one assigned to an old computer which I do not have an access to anymore. Both are registered under my same Parallels account. How to proceed, please?
My account is now in the status "Grace period", I want to renew the license for next year, but only for one computer.
Any advice highly appreciated.
Thanks,
Jan

 

Hello JanF4. We see that you reached out to us over Facebook (Jan Friml). We've already responded to your query over there.