Do you want to change your gallery's contact information on Artsper?
Log in to your back office and click on the "Profile" tab or on "My account" depending on your needs :
You will be able to change information concerning:
Contact information
Notifications
Password
Information
Addresses
Subscription
Bank details
Once you've made the changes, all you need to do is click on the "Save" button at the bottom of the section that you have modified.