The collection instruction should state the exact period of time within which any action is to be taken by the drawee.

托收指示应列明付款人将要采取行动的确切期限。

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For the unclear and out-of-control problems, it is necessary to ask the relevant expert or leader for instruction and give an exact reply to the customer.

对于不清楚，把握不清楚、把我不准确的问题应及时请示有关专家或者相关领导并给予用户一个准确的解答。

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