Interesting phone screenshots... Reminds me of my time in Chongqing...
It's also quite common when teaching to have the head teacher tell you something, the class manager tell the class something else and finally a third thing happens...
One time I had a class from the School of Foreign Languages of CQJTU, (I worked for the International College of Chongqing Jiaotong University, different department) having been loaned over to cover a short English refresher class for some engineers whose company had just won a contract to do work in Singapore. The ICCJU manager I reported to told me that the last class time I would normally have them for would be an exam so no need to show up the final period. So on the second to last class I told them farewell and good luck with their exam. They were puzzled, Their class coordinator at the SoFL had told them there was no exam, the last class was just cancelled. I texted the ICCJU manager, the class rep texted the SoFL class co-ordinator, and someone must have organized something, we both got told to show up at the classroom that last class.
Next day, showed up, everyone waiting around joking and playing up while we wonder what happens, and the SoFL co-ordinator shows up and hustles us upstairs to a meeting room set up with a big table... Speech time. Deans talking, head of departments talking, class rep talking, me talking, lots of speechifying at short notice. Photos, diplomas/certificates handed out, photos taken, and all done.
That sort of organisation skills was pretty standard for China.