Garmin Forerunner 235 is *******!

The following message was posted on Garmin SA Facebook site and incl in a message to them. They choose to ignore me! I purchased two Garmin Forerunner 235 watches in Dec 2017 for my wife and I. We use the watches to track and record activities into the Discovery app as part of vitality. For the first 14 months all worked 100%. Over last few months my wife has complained that the time reverted to the previous day and activities therefore lost, result no Vitality steps credited. I've reset the watch several times, done software checks and upgrades but problem continues. Taken it to Sportsmans Warehouse, Tygervalley where they also checked software and settings. I returned two days later as problem had not been resolved. My wife's watch was sent to Garmin and assessed to be non repairable and I'm offered a refurbished at R2000! Now here is my problem with Garmin. I have two of the same model Garmin watches with the same problem which are now useless to me. Almost R10 000 spent! Please Garmin, address this issue urgently? Mobile ***