I noticed that you can only have 25 global service test/locations for a subscription whether its a trial or a non trial. 

I am trying to find out if my account is trial or not.   Here is the service details when I login to our GSM account. 

Services

Service Name	Usage	Available	End Date (UTC)	Status
System Center Global Service Monitor	N/A	N/A	Auto Renew	Active

Does this look like a trial or how do I find out.  Im guessing its not a trial based on the auto renew.

Also how do I add more tests/locations beyond 25?  do I sign up for additional subscriptions?