@Anne9971
There is a bug in the special offer feature already for a long time period.
After you sent a special offer, you will see a mess when retrieving what you have sent.
But the guest will see the correct offer you have sent !
Indeed you can reprice the dates and askguest to book. But the there is a risk somebody else will book, especially when you use Instant Book.
Another method is:
Guest books the room as normal
After confirming of the reservtion you can use the "change" option on the reservation to only amend the price in the change form. Guest will receive refund of price difference (Airbnb Service fees will also be recalculated).