hi my mother has dementia and is in a care home awaiting decision on if she can go back to her own property .i was concerned that somebody in the family was or maybe taking money from her bank account as my niece was apparently keeping the cash card at her home ,so I called bank and raised possible concern and asked to stop the card which they agreed .once it was noticed by the said part of my family that card was stopped they were very angry and said I shouldn’t of done that as they were using money from the account to renovate my mothers flat for her possible return ,I didn’t know this was happening and have no problem with this but have obviously had card stopped ,now my nieces husband says he is being investigated by bank for possible fraud as he has been taking money from atms for materials used and is telling me bank and his solicitor are now having bank conversation played back so he can hear what I said in conversation and is making threats to me now .can bank play this conversation back to him legally ?