First, make sure your membership didn't expire. You can do this by signing into your account and viewing your Profile Page, and you can change your membership on your Membership Management page.

If your paid Savvy Shopper or Shopaholic membership has not expired and GoSend's Go-Tracked shipping option is not available to you, then one or more items in your locker are too large to be shipped using this service. We are sorry for any inconvenience.