Hi - failed CT on 16 year old car a week ago. Not worth repairing now. Received a CT certificate in red- stating that red cert was valid until dec 6. Then i see notice on cert stating that i can return to do th re - test any time - - - up to the 21 jan. So can i drive the car until the 21 1 ‘18 legally. If so why does temp cert state that cert is valid until dec 6. I phoned centre but the lady very dimissive and i got no proper answer - in the translation prob. Appreciate any insight to this thanks.