Hopefully it has worked for us. I followed the advice of what others had done (detailed on twitter feeds between them and the PO) who subsequently applied fast track, provided a withdrawal letter at the fast track interview and got their passports 3-4 days later. The lady who served me at the fast track in Glasgow said we will get the next passport by Monday next week at the latest. She said that most of her day is taken up with people having to do the same as me (cancel existing and go fast track).
