Thanks @Pipp, @Bluetit1802, @Rachox, @satindoll,and @Goonergal.  The phone was my first port of call.  The girl I spoke to hadn't the foggiest idea.  She suggested asking the guys in the Post Office!  Haha.  I said, "You're the DVLA.  They'll tell me to call you!"  I guess I'll try again on...