Uber Software Developer interview questions

I interviewed at Uber in Decemer 2015. Overall, the interview was not hard at all. First, a quick call with the recruiter, then a phone screen and then an invitation on site. The technical questions were not very hard and nothing unexpected: hashmap, BST, simplified DP problems and etc. Interviewers were nice to talk to. I've learned quite a lot about Uber and it was pretty cool. I think I did pretty well but there were a couple if hiccups, especially at the end of the day when I got tired. Also, I might have asked too many questions about Uber's work-life balance :) So next day I was told that I am not a good fit for Uber. However, my good impression about the interviewing process and the team was undermined by what happened next. I interviewed at HQ and they gave me a promotional code so I can use Uber to get there from south bay area. The code didn't work so I just used my credit card to pay for the rides to and from Uber. The recruiter onsite told me to submit the expenses and they would reimburse that. Their form says it takes 15 days to get the money back but I haven't heard from them for about 40 days already. And the most disappointing thing is that the recruiters just ignore my emails. Common, Uber you got more than $6B in funding, I am sure you can afford being honest to your promises :)