求翻译：There can be many reasons you cannot place, modify or close your trade. Regardless of the reason you need to contact us immediately. We can be reached from the market open on Sunday (24 hours a day) until the market close on Friday. If you are in the US you can call us toll free at 866-468-3739, internationally at 1-801-930-6800 extension 2 or chat with us by going to our web page, www.ibfx.com, click on Contact Us in the upper right corner then to the Live Chat tab.是什么意思？

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