Switch/Delete Subdomain from 1 Free User to 5 User Free Trial

Hi Guys
How can i switch an account from a Free User to 5 users 1 Month Free Trial? I have searched online but i can’t get a solution. Or How can I delete my account or change the subdomain to something else so that i re-register the subdomain

Please write to us about it at support@erpnext.com

I already sent an email like an hour ago but there has been no reply

It is a weekend here, you will certainly hear from us on Monday.

No problem. I will wait.

Thank you.