License registration failed trial

Messrs
I need a trial license for Proxmox Mail Gateway, with the following parameters:


Domain: xxxx
e-mail: xxx
company name: xx
firts name: xxx
last name: xx
Country: xxxx
Website: xxxx


mistakenly sent the domain with other data, and I need the trial license on that data.


If I can help, I thank


How I can apply for a new license in a domain that is already used ??