关于希腊信用证条款

最近有个希腊客人，是开的信用证，其中有两条是这样的：

 WE(THE ISSUING BANK) HEREWITH OFFER TO THE BENEFICIARIES OUR FIRM COMMITMENT TO PAY THE FACE VALUE OF THE (USANCE)DRAFT,AS IF IT WAS DRAWN AT SIGHT.ALL EXPENSES RELATED TO THE PREPAYMENT(DISCOUNT)OF THE DRAFT,SHALL BE ON APPLICANT’S ACCOUNT.TO THIS EFFECT,THE BENEFICIARY MUST PRESENT ALONGWITH THE DOCUMENTS ENUMERATED IN FIELD 46A) A DECLARATION ADDRESSED TO US (NATIONAL BANK OF GREECE SA,ATHENS/GREECE),STATING QUOTE WE IRREVOCABLY AND UNCONDITIONALLY ACCEPT YOUR FIRM OFFER TO PREPAY THE DRAFT DRAWN UNDER THIS CREDIT TO MATURE AT 120 DAYS AFTER SHIPMENT DATE,AS IF IT WAS DRQWN AT SIGHT,AND ALSO WE CONFIRM THAT WE HAVE NOT IN ANY WAY ASSIGNED,CHARGED,PLEDGED OR OTHERWISE ENCUMBERED,OR RECEIVED ANY MONIES IN RESPECT OF THE PRESENT CREDIT UNQUOTE.

THIS DECLARATION MUST BE SIGNED BY THE BENEFICIARIES’ AUTHORISED SIGNATORY(IES) AND MUST ALSO BEAR THE PRESENTING BANK’S SIGNED CONFIRMATION THAT THE SIGNATURE(S) APPEARING ON THIS DOCUMENT IS (ARE) AUTHENTIC AND VALIDLY BINDING UPON BENEFICIARY’S FIRM.

 

我也问我中国银行，他们不愿意给我们签名，说是融资行为，但我有一点不明白，这钱是开证行付，跟我们银行没关系啊，但客人坚持不肯删掉这个条款，但如果我们银行不签我的话，只能按远期信用证了，出货后120天才付款。如果银行给我们签字，就可能按即期信用证。

 

求高手解答。