Actually I've had 1 unpleasant experience out of 3 so far. I wanted to buy an item at a lower cost(because it was a lot cheaper on other sites) and asked an exec about the same. He could've said something like "Just monitor the prices, they might come down" and I would've done it, instead he said "I'll personally keep a tab on the prices for you and will intimate you in case the price falls to your expectations". While it definitely looked like a false promise, I assumed from all the online reviews that he actually would follow up. But what alerted me was a BuyHatke monitor when the prices fell down. The prices stayed low for two days and I waited to see if the customer exec would really follow-through, but he didn't.
There was no real loss to me, but it was just an unpleasant experience. I am pretty sure that wouldn't happen if it was a refund/return.