I am sorry that you found yourself in this situation.
Nicole Fedorchek, Realtor
In the future try and make your best a final offer right out the gate. Offering less than list price (unless you are paying CASH) is a big gamble in today's market.
Also be careful of the documents you sign, and be mindful of the terms and timelines.
I wish you the very best, but based on the info you provided, I must conclude the seller has done nothing wrong.
Kawain Payne, Realtor