If you have received correspondence, a text message or a visit from an enforcement agent regarding a Penalty Charge Notice that you had no prior knowledge of, it is usually the case that all correspondence from the local authority had been sent to a previous address. It is vitally important to ensure that when moving house, you should ensure that you update your driving licence AND your V5C (Log Book).
How to update your Log Book (V5C) online with DVLA
It is very simple indeed to update your V5C (Log Book) online. You will need to have your previous V5C to hand as you will need to provide the 11 digit document reference that you will find on the front of the V5C. The DVLA website link is here.