This offer is firm subject to your acceptance reaching us not later than December 15.
此报盘为实盘,但以我方在12月15日前收到你方答复为准。
and there is a very firm rule that the bank has no right or authority to pay out a customer's money on a cheque on which its customer's signature has been forged.
银行没有任何权利或理由把储户的钱让伪造储户签名的支票取走。