"For Approval" was written in the pink slip given to us. What does than mean?

My friend submitted our requirements in the Chinese Embassy this morning. We have an invitation letter from an authorized travel agency in China. Along with this, we also submitted our plane booking, forms etc. The lady in the counter returned the plane booking to my friend and was told that it’s no longer necessary. She then gave my friend a pink slip with note “For Approval”. She told my friend to wait for the embassy’s call within 4 days, and if there’s no call then we’ll be the one to follow it up or better go back to the embassy. What do you think is the status of our application, we’re a bit pressured by time coz we’ll be leaving Saturday next week already. Thanks!!