How would you get Microsoft's attention? Bad firmware bricking Surface Go 1 eMMC

[blubillcanada]

Seems Microsoft has been pushing out a Windows firmware update for the Surface Go series of tablets. This firmware version 1.0.34.0 was released end of May 2022 and is causing many Surface Go 4G 64GB eMMC machines to no longer boot from the internal eMMC with a "No bootable device" error.

According to this thread, Microsoft appears to know there is an issue but has done nothing to fix it aside from sending in your device for a replacement for $250.
https://answers.microsoft.com/en-us/surface/forum/all/surface-go-uefi-version-is-1034-and-no-bootable/9d1ba573-7929-489d-b31b-1b5912df529b
A Reddit thread
https://www.reddit.com/r/Surface/comments/uzeho9/urgent_notice_surface_go_1_uefi_firmware_10340/
And a single article
https://www.realmicentral.com/2022/06/22/surface-go-pay-attention-to-firmware-1-0-34-more-than-someone-is-in-serious-trouble/
Not sure what it takes to get the wheels greased at Microsoft, but they are "bricking" lots of Surface Go 1 baselines.

Any advice would be appreciated. Thank you.
Bill from Canada