Gurrila screen or not

I recently ordered a samsung s6 over the internet by vi<br> Vodacom. Thus far its a very nice phone. I got the phone because of the duribility. 3 weeks down the line i put my phone on charge put it on a low shelf and it slipped off. My charger still connected. Was a less than 80cm fall and hit the floor on the back cover. When i picked it up i was amazed to find it broken. I was especially shocked that it was broken after i saw the duribility test.