Where do we send these malfunctioning drives back to SanDisk?
First, if new, you should return them to the dealer you bought it from. They’ll take care of you and then settle up with SanDisk via their RTV (Return To Vendor) dept.
If you are past the dealer’s return window, contact SanDisk about an RMA (Return Merchandise Authorization) first. They will then give you the address to send the defective product to.
Note that ti’s quickest and easiest to call Sandisk, rather than e-mialing or even doing the Live Chat thing.