have been charged CGT. Whether or not the solicitor should have realised this is arguable and i give him the benefit of the doubt as it is usual circumstances but another sol might have been on the ball and saved us this hassle and loss of money.
As for whose fault it is:
the solicitor is not blaming the lender (they did issue a paper cory with the correct details.. so I am not sure if it was a verbal quotation that caused the error) but their own assistant sol, who no longer works with them.