A claim has been issued. Nothing is over until you receive a copy of the N279 Notice of Discontinuation.
What you have shown us is the boilerplate CNCB response. What exactly does your MCOL history say?
Does the email you received from the landowner or their agent confirm that they have themselves received confirmation from ECP that the PCNs have definitely been cancelled and that they no longer claim you are in debt to them?
Once a claim has been issued, simply receiving notice from a third part to the claim, even though they may be jointly and severally liable for their agents action, that the original invoice has been “cancelled”, does not simply stop that process.
