Okay
I called the London Tribunal and I've been informed that they have not been notified by TfL that one of the PCN's was being cancelled. I had to point to advisor to the paragraph in the Case Summary document which makes reference to this. The advisor said that they will be informing their line manager of this development. I had called for a copy of the letter that TfL sent notifying me that this PCN had been cancelled but, naturally, they have not been able to provide this as TfL have failed to inform them of this development. Unfortunately my OH tossed the letter away so I do not have a copy myself. I do recall that they had said that an administrative error had been made and that they had informed the London Tribunal of this, but that has turned out not to be the case. I've requested a copy of that letter from TfL and they've told me that a copy has been generated and will be sent in the post - I'll post a copy of that up when it arrives.
The advisor was also able to share that the hearing has been scheduled for 24th of this month and that a letter is in the post confirming this - it hasn't arrived yet but as soon as it does I will post those details here as well.