Qunar was a travel meta-search engine in those days; we used to pay them to list our inventory. Their API was quite shoddy. We stopped paying them, because it didn't make sense (we paid more for less business in return than was profitable). They then turned around and started offering the same services other companies used to offer and advertise through them... after they'd taken everyone's listing and price data. I personally find that a questionable change of model which would have caused legal havoc in a western context, not so in China. Tuniu I am unfamiliar with.