

Working/Tourist Visa Trouble
Recently I acquired an internship in China and tried to apply for the F visa with my letter of invitation from the company, only to be told that the letter needed to some form of approval from the Chinese government (the letter of invitation I showed had an official stamp, stated my full name and passport number etc.). My internship is completely unpaid and I will be in China for 80 days, and I have been there before to study. The company I am working for has told me to get a tourist visa and assures me that these problems are normal and that they will be able to extend my visa once I arrive (this also happened to many students I knew when I was studying without much problem at all, as they left Australia before they received their letter of acceptance at the University).
Will I be able to apply for a 30 day tourist visa even though my flight itinerary states I will be in China for 80 days? How can I come to some resolution for this issue, I am starting to worry. Please help!!