It seems like you're encountering difficulties with a warranty claim for defective Optilite LEDs, which are distributed by National RV Supply and sold at Camping World. If you're having trouble reaching the manufacturer for warranty support, consider the following steps:
Check the packaging or any accompanying documentation for contact information related to the manufacturer or warranty support.
Contact Camping World's customer service and request more specific contact details for the manufacturer. They may have better information about how to reach them.
If all else fails, you might consider reaching out to Camping World's corporate headquarters and expressing your difficulties with the warranty process. They may be able to assist you further or provide guidance on how to proceed.
Warranties are typically intended to protect consumers, so it's important to keep pursuing a resolution. If none of the above steps work, you may want to explore any consumer protection laws in your area that could apply to such situations.