Simple method so I'll keep it short.
Rapeable method as of now, so keep it going!

A receipt will be needed.
https://darkproof.net/ can also be used.

Step 1:
Contact iOttie support via this link:
https://iottie.zendesk.com/hc/en-us

Step 2:
After you have chosen a product you want to attempt to SE, progress to the contact us section found in the link above and click it.
Submit a request by filling in all relevent information.

Step 3:
In the description section, state that the product is showing no signs of life and seems to be completely broken.
Support will attempt to solve this through troubleshooting.

Step 4:
After failure to solve through troubleshooing, on average 2-3 days later you will receive an email with tracking infromation for your new product.