It seemed your time line is in the future? And Visa 175 you have applied? But you said you are under state sponsorship? This might be 176..? 175 is Independent not sponsored..I just saw this after attaching my documents "Attach supporting document(s) for the lodged application with Transaction Reference Number (TRN): XXXXXXXX".
I haven't used my TRN while attaching or naming my documents.
Is it mandatory to name them using TRN ?