Robinhood.com AKA Robinhood trading stole 547 shares California

This stock market app is a fraud, on Nov.9 2017, in my account with Robinhood trading platform in the stock market., I had 683 shares of lode, after closing hrs I went back online hrs later, to see how my stocks did, to my surprise I notice 537 shares were missing, I contacted their support center and I got a response by email a few hrs later, they replied that they were aware and will look in to it, in the past I've notice similar acts on their be half, and did not received any resolution. This is my first complaint I have ever made about a company and I do hope people will read this and stay away from this site, I have screen shot documents of every transaction . Google should remove this app from its Google play app site. It is stealing peoples hard earn money and have to prevent them from stealing in the future.