Has anyone out there been hit by a reclassification of MQ? Ours went up last year (didn't pick up on it as DH was deployed) by about 65%. DH is attempting to challenge this, but is getting the run around. Does anyone have any idea where the rules are set out? It seems that the main reasons ours has gone up is proximity to London and also that the surveyor used an electronic gadget which told him that the houses were bigger than they thought. 
I know other people have bigger concerns, but an uplift of £150 - £200 a month is unwelcome with everything else that is going on.
Thanks in advance.