No clue and no feedback

I have phoned and spoke to the call centre agents about 5 times now reporting an issues on my Garmin Approach S60. Three times to an Indian gentleman and twice with Thulani. Every time they ask me the same questions which tells me they never even tried to resolve my issue in the first place. Both promised to come back to me and both didn't. I even resorted to getting specific dates from them but all in vane. They weren't even aware of the issue although the Garmin forums are ful of it. The service and the knowledge is appaling but worst than this is the empty promises