House sale scam

this company was an intermediary to the house sale and they where also involved in the listing of the sale of the house. they gave me an offer to purchase which i signed and send it back to them. i then paid them money and after two month when i should move in the house they told me that the client doesn't want to go ahead with the sale. they gave me the refund forms to sign which was on the 25th of August and to date i have not received the payment. the service is bad and the ladies there are rude