PCN at location never attended

[Calg]

Thanks so much, this is all very helpful and reassuring!

Can you please post images of the Notice to Keeper (NtK) if you have it (both sides). Also, douybe check whether it relates to the earlier one you say you paid. (Next time please come here first and save the money.)

Here are images of all documents received regarding this PCN. Unfortunately I didn't keep any correspondence from my previous incident, but thanks, I know better now!  

https://ibb.co/PzWD8NtC (front)
https://ibb.co/zhR16Kkr (back)
https://ibb.co/4Rg65D0h (reminder)
https://ibb.co/S4vrGM3b (final demand)