WD Passport suddenly crash with 0 capacity while functioning normally before and questions related to RMA

I have a WD Passport that was working normally when suddenly it crashed and impossible to initialize. In command prompt it shows 0 capacity and 0 partitions. So I’m filing a RMA to receive a new one. But the question if it’s physical damage or things that WD don’t accept to fix, then will it be returned to me or not? And if it’s fixed/exchanged, will there be additional charges?