Apple Watch

I bought an Apple I watch through Discovery / Vitality 18 months ago ,the watch from day one was useless as it lasted only 4 hrs when cycling and on returning the watch to Apple they said it was normal. Two weeks ago the watch stopped working and on taking it back to Apple they said the screen had a crack and I must replace it at R 6000.00 ,Discovery says they cannot do anything about it and Apple say it is not their problem . On talking to Discovery they say I must carry on paying the penalty fee even though the watch is not working ,my advice to anyone wanting to get an Apple watch is think twice ,as far as I am concerned it is a total *******.