Can I get a refund if the hotel purchased by Dianping.com is confirmed not to stay?

Strictly speaking, it is possible. Because you didn't spend it,

group-buying website

You can recover the coupon number through technical means and let you get a refund. But it depends on how the group buying website negotiates with the merchants, because the hotel will say that although you didn't spend money, you booked a room, which caused a waste. Hotel comparison

brilliant in conversation

Yes, it can be operated. You can make a big complaint call, and then it depends on your luck.