This is Shop System taken from Gesior, converted to MyAAC.
Configuration you can find in files: system/pages/points.php and system/pay/*
Demo: Gifts - MyAAC Demo (http://demo.my-aac.org/gifts)
Go to Admin Panel, select 'Plugins', and then select gesior-shop-system.zip and click upload. Thats all!
Paste in config.local.php this:
$config['gifts_system'] = true;
Done! MySQL schema will be automatically imported when you first time visit points/gifts page.
Thanks for your work!