ANN the first thing to note is if you do not have signed docs from the seller, you do not even have a contract yet and should not have proceeded without the purchase agreement and all bank docs signed by the buyer and seller. the listing agent has to have a contact to speak with, it is possible to have tio wait a few days for signatures but not a month, not for a signature. Something is wrong here. Do you have an agent? if so they have to stop everything and get an answer. If not, you have to go to the listing agents and have them try calling, emailing, instant message anything to reach a live person and get an answer. lastly if you do not have a ocntract, they should not have collected your deposit never mind deposited it yet never mind keeping it. If all else fails, meet with an attorney to get to the bottom of this.