Thanks Roe.
@ kenzo - I did bring the valuation into the equation and they understand our frustration as a result of these valuations. They basically said that many people were taking advantage of the system and sending in significantly low valuations in oder to get a lower clawback. I can understand to a degree why they have moved the goal posts in this respect, however, there is an element of them needing to be realistic at the same time.
Hopefully it'll be sorted soon. Seriously, it's all I think about in work, at home, in my sleep... Constantly checking out potential homes for once this is sorted out.