This whole Strava situation is getting ridiculous 
As i understand it, Garmin API is now free ?
Perhaps it’s time to seriously consider moving some of the workload to Garmin.
I would delete my Strava account in a heartbeat, since i’m only using them to connect to CS.
It’s not good to be solely dependent on Strava, as we can see from the whole Relive situation.
Perhaps you could reach out to Relive and ask for some tips on using the Garmin API.