Address for extending visa

I am in the process of renewing my work permit but due to a long string of events it will not be processed before my visa expires. However, I believe that I have the documents to extend the latter (i.e a letter from the Labour Bureau and a list of items that have already been processed).

Both of my employers are insisting that I need to go to the National Immigration Agency on 廣州街 near Xiaonanmen MRT - both have said that this is the only office in the country that can grant a visa extensions. However, as a resident of Zhonghe, I believe that I need to go to 民族路 in Banqiao.

Everything that could possibly happen to slow this process down has already happened and I don’t have much of a window remaining. Can anybody confirm the address and the fact that the Labour Bureau paperwork (along with passport and ARC and, I am assuming a few pictures) is all that I need?

If the address on your ARC is in Zhonghe you should go to the Banqiao office.

Sorry, I don’t know about the rest.

That is what I thought and is going to be the first place I visit in the morning. I just double-checked with one of the people in charge of HR in my company and they are still insisting that Ao Guo Road is the only place for foreigners to visit and I thought that I might be missing something.