http://iscoresports.com/

I was a stupid-head and used my google id for downloading the iscore app for use on our school tablet. I am now in the process of leaving the school. Is there a way to change the google id so they don't have to download it again for use and pay another fee?

That would be a question for Google as we do not control the purchase process. Here is a link to Google Play's support site:

https://support.google.com/googleplay/?rd=1#contact=1