MK1 not functional

we are reporting many and more times about the nonfunctional diving computer watch descent MK1 ,
many times we had sent a messages to get your kind support as big company as Garmin but no any kind of care to your customers , we had reported before about a failed diving mode to run when we were navigating to a dive point for both me and a buddy , the depth altitude was not detected as fact it only read the depth from down 19 meter as 0 meter that time ,
and that is not only the issues we had faced , the heart rate sensor broadcasting not stable in its read , it read for a while then nothing then read back , even now the heart rate widget not show and data for the previous 4 hours ,some times it is writing measuring but nothing after , also nowadays the backlight not working as its a programmed , the setting say to run 8 seconds but it does not , some time it work for 2 seconds and else more then stop at all , from time to time not working at all even by the left top light button , all of those issues we are facing from a diving computer watch costed us 1000$ and you still do not care , when will you give us ant considerations ?