Attach a copy of the original invoice or other certified proof in writing, sufficient to identify the package contents and substantiate the lesser of the actual cost, replacement cost or repair cost of the merchandise.

• 附上原始发票的复印件或其它足以标识包裹内容和证实实际成本、物品的替换成本或修理成本中金额较少的那个的书面证明。