Third time reporting monthly calorie bug - how to contact support?

Daily calories do not add up to monthly calories, whether I take the dailies from the app or website. Monthly is nearly (but not precisely) double what it should be.

To prove I'm not calculating wrong: These are my daily remaining calories as shown in the app or on the summary webpage: -988+433-700-889+97-118-679-30-252-456-724-571+2105-394+70-59-608+74-2+118-2+107+25+32+26-9-1822+257-621-899

= -6470.

The monthly overview is giving me -12659 for this same month.  

See my other post for photos with further proof of needed. https://forums.garmin.com/apps-software/mobile-apps-web/f/garmin-connect-web/416368/monthly-is-double-daily-remaining-calories

This is making Garmin unusable for tracking calorie needs, and I've not been able to even find somewhere to report this bug. Is there anywhere to report this to someone who cares?