Thank you everyone for your help, especially Jeff and Nich for confirming with their V5C?s, the photo is particularly helpful.

I did some digging and fired over an email to Lindsay at http://www.mgrccservices.com/ - it looks like they can be a little hit and miss but they ought to be the last word when it comes to MG technical records.

Doesn?t look cheap but with a bit of luck perhaps they can help to verify the mistake and issue a CoC to evidence a correction request to the DVLA.