A lady contacted me and made a written offer for one of my items but said she could collect locally. I counter offered and she agreed the new price so I sent her an offer valid for 3 days and then changed the delivery options to local collection only. She then changed her mind but I can't change it back to postage and local collection until the offer expires. If I ask her to decline the offer, will it then allow me to change it back earlier? Many thanks in advance.