When she is a true kleptomaniac, grounding or getting angry is not going to help. It’ll make actually the behaviour worse ! Sounds maybe strange, but best is a neutral response and not an overload of attention of the behaviour.
My 8yr old is diagnosed with kleptomania in the context of a Reactive Attachment Disorder.
I would suggest get psycholical help. Go to your Gp to get a referral. The Gp will then make a Mental Health plan on which Medicare will partly cover the costs for psychological help.
Published 29th March 2020