I can only comment about the SARN, and these comments are based on my own experiances. These statements & suggestions by me are to the best of my unqualified knowlege and you may wish to verify them elsewhgere.(posted 8170 days ago)No they can't say this to you. It does not matter who they are acting for, you can serve a SARN on them and they are required to responsed with your data. But the route to get this corrected is long. You have to send a letter to the Information Commissioner requesting an assessment. (no charge) Attach a copy of your SARN request and their communication in response. It will take the IC anything from one month to six months to respond to you on this, depending on the complexity. You must attach copies of all communications when makng the assessment requesrt to minimise this aspect.
I would suggested to you that you need to state to the Information Commissioner that you have reason & grounds to beleive that criminal acts have been committed, relating to the wrong sale price, and that you require the SARN data to determine the extent of these criminal acts. Otherwise they will then attempt to claim professional privalige and still refuse to provide you with anything anyway.
Good luck.