I bought a car through a private bank. It was registered to sabaragamuwa(SG xx-xxxx) and it’s there in the car book. After transferring the vehicle to the bank it has been registered to Colombo address and shows as WP xx-xxxx on the book which I was given by the bank. But the number plate displays as SG. What should I do? Do I have to change the number plate? If yes how can I do that?