@iispartan it's worth keeping an eye on the council website once every couple of weeks or so, most councils will update the status to indicate if the NTO has been issued. At the moment is says "
Your PCN is at full rate stage" and I suspect it will change to something different once the NTO has gone out, this will allow you to challenge the NTO even if it's lost in the post (you don't need to physically receive it to make a representation, you just need to know it exists).
While we're on this topic, the website wrongly says that the the Penalty Charge Notice will increase to £195.00 on 17 February 2025, which amounts to an unlawful threat:

This is a winning ground of appeal in its own right.