This is a general announcement that all TFL's PCNs for red routes / moving traffic / bus lane contraventions have a number of systemic flaws that render them all open to challenge, but only if the motorist does not take any action without being given some specific instructions which I'd rather not ventilate publicly. Anyone with a TFL PCN should contact me directly and I'll deal with them.
This does not apply to ULEZ/LEZ, the congestion charge or the Blackwell and Silvertown tunnel PCNs.
If TFL are reading this, I promise you I'm really, really not trying to target you more than any other authority, it's just that your processes are $hit and have more holes than a sieve, that's not my fault.