Extra Local Alerts Checked Twice as Frequent
https://help.brickseek.com/hc/en-us/articles/360051868073-Managing-your-BrickSeek-Subscription-Add-ons#alerts
Extra Shopping List entries.
https://help.brickseek.com/hc/en-us/articles/360051868073-Managing-your-BrickSeek-Subscription-Add-ons#shoppinglist