Are you being represented by the same broker as the seller or a different broker? If you are represented by a different broker, you should have no issues and they can prepare this document and get it to the sellers broker. If you are represented by the broker that is representing the sellers and they are not doing what you ask, contact the designated broker in their office and explain the situation.
It depends on how you structured the offer but your earnest money wouldn't necessarily have been deposited at escrow or the brokers account but it could have been. Was your check cashed?
If so, by who cashed it?
If I can help in any way, please do not hesitate to contact me.
I suggest that you or your agent formally withdraw your offer on the short sale property. It needs to be in writing. If the bank has not approved the offer then you should be entitled to getting your deposit back if that is what was written in the purchase agreement. If the seller refuses then you may wish to consider getting a real estate attorney involved as it's a legal matter.
Good luck to you!
Prudential Connecticut Realty