[Melvin]

Great services
- but unfortunately it is blocking my account from ordering domains...

You may create new account mate, or contact them via [email protected], telling them about the details you need, and asking them the reason why

you get block, but as i remember account blocking  from  changing your ip address thats case that problem. check this for more 

informations https://www.freenom.com/en/contactus.html.