if some one wanted another pet spot what do they need to purchase ?

for 1 pet slot for 2 pet slots :)

Or if you're still under 10 pet slots, you can purchase a Gold Account medal for a week and fill the spots while your GA is active.

ohh I'm well over the 10petspot reason I needed to know what to purchase for an x-tra one and thank you both for the Answers!! much appreciated