Sorry, the offence is 'Parking in a Restricted Street During Prescribed Hours' and the code is 01. The street switches to proscribed hours for an hour, between 0930 & 1030, to dissuade commuters. I have currently drafted the letter below:

Really? 2 year olds can take a while to get sorted! I thought I did well The PCN code is from Redbridge: AF54580664

Thanks very much for your assistance!

I was dropping my son at nursery and the single yellow became restricted at 0930, the ticket says 0936 on it and there is no from time. Do I have a leg to stand on? Dropping my son off feels a bit like unloading goods!