Endaba interview questions

The whole process took about 3weeks First interview with the COO then second interview with the CEO and founder Before the second interview,I emailed to let them know i already had an offer somewhere else but they insisted on still chatting with me.They made me an offer which after a day of thinking about,I accepted. They acted like the really wanted me and i genuinely felt good about this.After a WHOLE WEEK the took back their offer,giving excuses (gaslighting me).I was disappointed and very sad. I genuinely couldn’t react.I literally turned down a very good offer for them.