Thank you for quick reply. it is for not having car continuously insured.
it was until november 2014, and on the letter it says
you are required to appear at Swansea court to answer to the charge that on 09/04/2015 you were the registered keeper of the Vehicle which did not meet the insurance requirement .
no it wasn't insured on that date and I did not Sorn it.
I was not driving the car even when it was insured a friend of mine was driving it then he stopped driving it and i did not pay attention that he cancelled the insurance.
Thank you very much , you have been very helpful