I complained tons of times, and the customer support is really fast answering (i must admit they are the fastest of all exchanges!), but nothing changes.
I just began to think that these bots could be some "inside" job to make a profit... so the perfect business to cheat people, unless they use bot trading!
I don't have any experience with Bot in IDEX, because I rarely use this exchange, but I can say that IDEX is the worst Decentralize Exchange out there. they are very lack of features. Their minimum trading amount and fees are ridiculous, and I experience many times the stability issue using their platform. All they do was advertising and luring user to buy their AURA token. I stopped using IDEX and just move to other Decentralize Exchange. There are tons of better Decentralize Exchange out there.
The problem is that most decentralized exchange works the same way. Some are even worse than IDEX, you'll know when you get into forkdelta and some unknown DEX where the tokens you hold are listed there. You just can make people trade on DEX as it has low volume, you can combine all the dexes you know and compare it to one single volume of bittrex and they still can't match.