[案情]Y公司(当事人)通过H公司(另案处理)经手2012年12月10日—14日的“DZ汽车团”住房业务的过程中,于2012年11月26日与H公司签订了《协议书》,确定“DZ汽车团”在当事人处住房的价格、保密义务和款项支付等细节。在签订《协议书》之前,当事人与H公司通过口头协议初步确定了“返佣”的细节,明确如果“DZ汽车团”在当事人处住房,当事人将向H公司支付一定的“佣金”(当事人对支付款的称谓)。2012年12月27日,当事人与H公司签订了《DZ [Case] ​​Y Company (the client) signed the contract with H Company on November 26, 2012 through handling the case of “DZ Automobile Mission” from December 10 to December 14, 2012 by H Company (handled separately) The “agreement” to determine “DZ Motor Corporation ” in the parties at the housing price, confidentiality obligations and payment details. Prior to signing the “Agreement”, the parties and H company initially confirmed the details of the “rebate” through oral agreements, specifying that if the “DZ Motor Corporation” is in the client’s apartment, the client will pay the company H a certain amount of “ ”Commission “ (the parties to the payment of the title). On December 27, 2012, the parties and H company signed ”DZ