OP, it's clear you are under some stress, so why not take a pause, then come back later with the documents you have received. These are absolutely key to the advice we offer, and no meaningful advice can be given without them.
Normal rule is one PCN per thread, but where the recipient has a string of PCNs all for the same place and circumstances, they can all be in the one thread. However, it seems you have PCNs for several locations, so start threads on each of these. If you have postal PCNs for locations you have never been to, then one of two things has occurred - (1) CCTV has misread the number place. This is fairly common, and (2) some criminal has cloned your number plate for nefarious reasons.