You should have received a closing statement from the escrow company. Its a HUD form and I don't remember the form number. You should have received a draft copy when you signed the closing documents with the escrow company and received the final version with the check you from the escrow company. The Escrow company would also submit to the IRS the information returns (F 1099-somthing or 1098) as part of the closing. Contact the escrow company. If your relator agent didn't know this - well its something a real-estate agent should know.
Remember keep all your records on your house for at least 7 years after the sale. Also use websites like Zillow to see sales history of your house.
