英文高手帮帮忙客户发来一个《不可撤销的佣金保障协议》,里面有这么一段话,搞的我焦头烂额啊,不知道什么意思,谁能帮我看看?

英文高手帮帮忙
客户发来一个《不可撤销的佣金保障协议》,里面有这么一段话,搞的我焦头烂额啊,不知道什么意思,谁能帮我看看?
We the undersigned herewith referred as the SELLER, under penalty of perjury do hereby irrevocably confirm and irrevocably accept to pay all intermediaries and fee holders at the same time and in a manner as the seller is being paid for each and every transaction of this contract up to the completion of the contract plus rollovers and extensions and in accordance with the bank details to be specified in the hard copies of this contract.