How to remove write protection from usb flash-drive?

I have a SanDisk Cruzer Glide 128g and it is telling me that it is Write Protected, I did not place any write protection on the flash drive but it is there and now I cannot write anything to the drive. My first question is, how do I remove the write protect? And secondly, why is SanDisk putting drives on the market with potential problems for us consumers? Finally, the fix or repair should come from the company (SanDisk) not from us users who are experiencing the same problem. Where is SanDisk responsibility with this issue? Thanks and have a good day.

Dico