I think it's rather stupid of insurance company. Photographs showing her having "good time" at bars is not a proof of her mental recovery. She was not claiming for PHYSICAL disability like loss of limbs or something that it can be proven false with pictures. Insurance company should have hired an independent shrink to assess her mental health, before making a decision. What they expected her to do? lock herself in basement to prove that she was unfit for work!
I never saw depressed people having a good time at a bar. I saw them committing suicide!!!