Staycation

Just wondering, who always go for staycation, if this happen to you, what should you do? U have a complimentary deluxe suite room with this hotel. The hotel staff make a mistake at 1st and inform there is room, after that reply, it’s a typo and give you another room. And you agree, thought they upgrade you. However, few weeks later, u check and found out it’s downgrade and the room is smaller by half, and price is difference by half. And they didn’t inform it’s a downgrade, so is it our fault for not checking? Or they should inform us in the 1st place?