Cuprajake I’d think any support would be gone by now haha
I do not think a group buy would alter the warranty, which should be ideally a year at least! You bought them less a year ago.
You do not lose anything by emailing them with that YT video, proof of purchase and ask. You never know. If there is a serial number, please include that as well.
If you don’t ask, you don’t get! 😊