Client unreliability - any case law?

Client unreliability - any case law?

I have a client who has had her DLA appeal dismissed on the grounds that she was unreliable and lacked credibility.

The reasons given for this include her -
• current medical treatment being inconsistent with the level of attention need claimed;
• non-referral for specialist medical help;
• lack of adaptions to her flat.

I’m sure that I’ve read case law that holds that adverse inference should not necessarily be taken with respect to any of the above.

However, I just can’t find any - would anyone be able to suggest any decisions that might be useful?