Inconsistent prices after using Price Setting function

[Elaine44]

I set a base price and then an extra price for 1 additional guest.

My listing shows this new price for a couple of days and then later in the calendar is reverts to the old price and structure.

Why the inconsistency?

I've trawled through the Airbnb site but for the life of me I can't actually find details to contact Airbnb to get an answer.