帮我看看到底是什么意思

in istanbul port , the local agency requested from us incredible amounts. so we investigate and asked to them , and they told us that this charges had set by the agency in china , because in turkey there is standart fees for port operations( like discharge , isps , security , delivery order etc.??) 这里有提到国内。 这个到底怎么理解，国外的还跟国内有关系的？ 国外要付的费用跟国内搭噶的吗？ 老外现在要我们承担大部分的在他们那产生的费用，金额挺大的，老外说这些金额就感觉像是在抢劫，说他们正常的才没几百美金