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）

Question

因此，这4次修改信用证的费用，我和我的同事也都是与SIS公司沟通和确认的，而没有再联系银行.
没有其他的答案参考吗 谢谢

Answer 1

Therefore, as regards the amendment charges of the letter of credit on the previous four occasions, my colleagues and I have communicated and confirmed it with SIS company without contacting the bank any further.

Answer 2

So for the the cost of the 4 times modification of the letter of credit my Colleagues & I have already communicated with SIS company & confirmed all the stuffs about it without involve Bank

Answer 3

Consequently , the four times of the cost that amended the letter of credit , my colleague and I were also commniunicate and affirm with the SIS company , instead of the bank.