Tried to get nose piece replacements from Native for a week. This is the email sent from Luxottica Warranty & Repair Service Center Oct 15, 2020. 
Response By Email (Kristy K) (10/15/2020 05:26 PM)
Hello Lenny,

Thank you for contacting Luxottica After Sales.
We apologize, Native used to offer some replacement parts. Since April 2020 when we began we have not had Native replacement parts available. Again, I apologize for the inconvenience.
We value you as our customer and want to ensure you receive the best possible care.
All new warranty evaluation claims must first be submitted online.
At this time receipts are just recommended for Costa and Native customers and are not required for coverage on manufacturing defects under warranty. 
Please visit, to submit a warranty claim. Once here, you will be asked to register. This is a different registration from your profile.

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Again, thank you for contacting us!  Please visit
to complete a brief survey regarding your experience today. Have a great day!

Best Regards,

Luxottica Warranty & Repair Service Center