Your Instagram account must be public in order for the location tag to count as a donation. To make sure your account is public, open up your profile on Instagram.
Click on Account Settings.
Scroll down and view the "Private Account" section. If it is selected, you'll need to turn it off and click "OK".
Making your Instagram account public will make each Location Tag at a Causely business result in a donation to the month's cause! For more information on tagging your location, check out this article.