my fuze has stopped working and isn't coming on or responding to the PC charge


I not sure what has happened to my fuze I was listening to a song last night I was just laying down with the fuze at my side and near the end of the song it just went dead I looked at my fuze I tryed pressing play nothing I try switching it on nothing so I turn on my PC as I though the battery might of died left it for 10 min nothing responding on the fuze it not switching on or anything 

anyone else had this happen to them? 

I know there’s a years grantee on them so how do I send the Fuze to get a replacement?