kigurumi fursuit is too short, help?

i purchased a kigurumi fursuit from dokidoki but the face is rather short and my chin sticks out the bottom.(not sure why as my face is rather short and round) ive tried adjusting the harness inside to make it sit lower down on my face, to the point where i can barley see out of the eyes as its so low down, but my face is still visible at the bottom. ive attached a makeshift neck for the moment as to hide my skin but it looks bad and i wanted go ideally wear it with no neck as its a skin coloured suit. anyone have any ideas or have this problem themselves??