I'm having the same problem. Does your account ever just change prices randomly? We have fixed amount for each night (set throughout the year) and every once in a while it will change the price just on one day(usually all fridays) from $100 to $30. We have had a lot of people interested bc it's so cheap but then we have to let them down. It's so annoying! And happens constantly!
Actually I am having one nighters in tonight who are paying AUD 50 less than anyone else ever had because that was the price which showed up. I assumed I must have fiddled with the pricing somehow and just let the booking happen, and hope it never happens again. But I really didn't want to message guests saying ''sorry but the price is actually 50 higher'' as it feels like bait. But I withheld providing wine, so some small saving there!
I've had the same probelm on Christmas Day, which I had priced at a high rate as we have family celebrations etc. I then find an Instant Book at $50 cheaper, but I KNOW that I had increased over 3 weeks earlier. Very frustrating.