信用证条款（英语太绕了）

NOTWITHSTANDING THE PROVISION OF UCP 600, IF WE GIVE NOTICE OF REFUSAL OF DOCUMENTS PRESENTED UNDER THIS CREDIT WE SHALL HOWEVER RETAIN THE RIGHT TO ACCEPT A WAIVER OF DISCREPANCIES FROM THE APPLICANT AND, SUBJECT TO SUCH WAIVER BEING ACCEPTABLE TOUS, TO RELEASE DOCUMENTS AGAINST THATWAIVER WITTHOUT REFERENCE TO THE PRESENTER PROVIDED THAT NO WRITTEN INSTRUCTIONS TO THE CONTRARY HE BEEN RECEIVED BY US FROM THE PRESENTER BEFORE THE RELEASE OF THE DOCUMENTS. ANY SUCH RELEASE PRIOR TO RECEIPT OF CONTRARY INSTRUCTIONS SHALL NOT A CONSTITUTE A FAILURE ON OUR PART TO HOLD THE DOCUMENTS AT THE PRESENTER'S RISK AND DISPOSAL, AND WE WILL HE NO LIABILITY TO THE PRESENTER IN RESPECT OF ANY SUCH RELEASE. 以上为信用证附加条款，我看的是真头大，实在是弄不太明白到底啥意思，请教高手！