WHMCS Provisioning - Error Code: 1001 - You have entered incorrect username or password.

I have just installed WHMCS Provisioning and tried to suspend a pre-existing site. I placed the order using the provisioning module but did not run the "create" site function because it was already setup (manually)

I matched up the domain, user and password for the client site and tried to suspend it using the WHMCS_multisite module and it comes back as;

Error Code: 1001 - You have entered incorrect username or password.

I know I have the right password for the client profile... is this asking me for the user/pass to the admin of the multisite?

##### NEW NOTE ######

Now i just noticed that inserting the domain without the prefix defaulted to https which is not setup... so I typed in the absolute url http://wordpresschef.com and now it says it cannot resolve the url;

Connection Error: 6 - Couldn't resolve host 'http:'

#### NEW NOTE ####

So i reverted to using the domain as is, i.e. wordpresschef.com and now a different error yet again; Invalid data: The receiving plugin may not be activated at: http://wordpresschef.com

I know the plugin is active as I can configure its settings within WP admin (under network)

I'm so lost here, I followed the installation instructors to the tea.