Payments Made to wrong Bank account

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Hi there, 

I have a client who has 2 bank accounts - they entered ALL of their deposits in the First account, and they should have gone to the other account. I can't reconcile anything. 

Now I tried GJE to pull those deposits to the other Bank account, but the deposits i am trying to move still remain in the account (so it's like tripling) - I am afraid if I keep Posting GJE's it's going to create another mess. 

How can I fix this? I am desperate. 

Thanks!