@Santiago364 The price that was listed when a guest booked is what they pay- if you change prices, or anything else about your settings, it only applies to bookings made after that, it isn't applied retroactively.
If you feel you need to drop you price to attract more bookings, don't worry about what the guests who already booked will think- they won't even know you dropped the price unless they look at your listing again, and most guests wouldn't have any reason to do that once they have a confirmed reservation. Hosts change their pricing all the time, it's quite common.
If a guest does complain, asking why they paid more than what the price is now, you could point out to them that if they buy an airline ticket at a certain price, and the airline then has a seat sale on that flight a couple weeks later, the customer doesn't then get it at the sale price. Same with stores- if you buy a dress today and the store then has a big sale next week and the dress is now marked down to half, you can't then go back and ask them to refund you the difference.
Be careful about dropping your price too low, just to get more bookings- if it's too cheap, it can attract some not-so-good guests.
