Nic
Welcome to the forum, you might want to have a look at the following FAQ which explain where everything is
Welcome to Benefits and Work Did the HCP take your blood pressure at all or have they just reported the wrong arm?
If the former then this is a matter to contest as it undermines any conclusions that they have come to as a result. If the latter, then as frustrating as it may be, raising it as an issue is unlikely to help your claim.
You don't mention the benefit and your post suggests that you are at the appeal stage?
If you can provide the missing information we may be able to you more.
Gordon
