To create a Subaccount for your account click on My Account and select Subaccounts in the drop down menu.
If there are no Subaccounts setup for your account, you should see the Subaccount creation page now:
You can enter details on the left and set the permissions on the right.
Click create when you are ready to create the account. Our system will let you know if there are any issues or required information is missing.
If there are already Subaccounts setup for your account you will see a different interface:
The option to create a new Subaccount is on the top right.
On the left you see a list of Subaccounts which are already setup. You have the option to impersonate this account or edit the details or permissions.
If you still have issues, this guide might be helpful.