Robinhood's "Ladder" feature sold all of my shares because of an app bug. What are my options?

This happened yesterday, January 21. I had 400 shares of RKT with an average price of $22.88. I was going to sell covered calls, I clicked the "Trade" button and saw the "Ladder" option which I had never seen before so wanted to check it out. This is the Ladder page on Robinhood https://imgur.com/a/T2GTlju

As you can see the default setting is "1 share". I clicked "Buy MKT" to see how it worked and a popup came up saying something to the effect of 'Close and return' but I can't remember exactly what it said, I do know it said Close for sure and no buy or sell confirmation. I clicked it and the app immediately sold all 400 shares of my RKT stock at $21.28 resulting in a loss of -$651.50.

After the trade happened I later checked the settings on the Ladder page and the "Auto-send - Place orders without a confirmation" was unchecked (it is by default) https://imgur.com/a/VVo0au7 so I should've been to sent a confirmation page to confirm the order but I was not.

Today I checked the Ladder page and now when you click "Buy MKT" it takes you to a totally separate page to confirm the order, input number of shares, set limit price, etc. I was not sent to this page yesterday.

I spoke to RH support and was told they would talk to their back office to have the trade busted and my shares returned. I received an email today saying the back office was not able to bust the trade. Do I have any recourse here? I'm out 400 shares and -$651.50 directly caused by a bug on their app, isn't this a FINRA violation? Should I contact Robinhood again or file a complaint?

Support chat and email I received:
Chat: https://imgur.com/a/Aa3tJwa
E-mail: https://imgur.com/a/ViHyVun