To return a Smappee product under warranty you need a Support ticket which will also act as the RMA number.
To get a ticket, send a mail to "support@smappee.com"
Once you get receive a support ticket, fill in the following RMA Form, make sure you fill in a clear reason and the ticket number of the support ticket.
https://smappee.zendesk.com/hc/article_attachments/13248836816276
And attach it to the ticket, also make sure you send this form with the device you send back.
Wait on the confirmation from a support member to send back the product.
Please always include the RMA form with the shipment.