get back to them and get it corrected its only one character difference - it has no impact on value or anything. BUT DO GET IT CORRECTED otherwise your car can land in trouble by "rishwatkhor" cops.
If they had put an entire no. wrong it becomes a problem. - I experienced this when I helped a freind correct this for his bike, it was a CBR900RR fireblade. The loosy, idiotic, high, chaval, chew***, haraamkhor person inspecting the bike wrote the side stand starter lockout part no. as chassis no. I also had to fix this in my VW Golf too - similarly someone wrote down the cylinder head part no. as engine no. (I had to get a certificate from VW werke) and the original B/L entry to rectify it - the B/L copy was damaged in their (registration authority) possesion