I know you don't understand but you will just have to accept my opinion this time.
我知道,你或许不能理解,但这次你必须接受我的意见。
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。