比较急！请帮忙翻译一下英文吧 非常感谢 （请不要用翻译机器）

Only after verifying with the Bank of China that we realize there is a difference in charges for L/C amendments between local banks and ovrseas banks, but SIS Company had not informed us about this before.

After confirming with the Bank of China, we came to understand that the fees charged by the banks in China for amending L/Cs are different from those charged by banks overseas. SIS company did not mention this point to us previously.

The bank of China, and after that, we verify the domestic and foreign/payment/payment of fees are different, and this is no notice before the SIS company to us. 标准的！！