To activate your GoFi Prepaid SIM card or Hotspot, go to keepgo.com/activate and find the "Add a new line" menu item. Enter your line ID (last 8 numbers printed on the rear side of your SIM card/Keepgo hotspot) and click "Add". The Line is added to your GoFi Europe USA plan.
If there is any error happened, please contact us via chat pop-up on the website or at support@keepgo.com and provide with full 19 numbers on the cards.