@Maria-and-Jean0
Good question. Are you saying that when you pay for your reservation, you are not shown the total price?
Is that price not broken down for you into a transparent line-by line explanation of host base fee, cleaning fee, taxes and Airbnb service fee?
Are you not allowed review of these costs before purchase?
Are you usually not allowed a 24 review period to reverse your transaction without penalty?
Are you not allowed to say "no"?
If so, you may have a legitimate argument or your Airbnb platform may be broken
Good luck