Brand new Apple Watch went dead.

Had the watch for about 100 days, then started acting out, battery went dead, then the typical snake wire and green bolt, tried to charge it and a bright yellow/green light showed up in the screen, after that the phone became unresponsive to any charging intent. Bought this watch thru BestBuy, and it was a brand new watch. Dont know what to do. Its just too expensive to be acting out like that, such a shame.