Problem caused by your funds being low: Checking or savings account

My chime account was closed due to a adjustment I never had any acknowledgment of I tried to open a new account they gave me access to my old account because I lost my email they updated my email for me and my new phone number I asked to representative why was my account closed in the first place she said she couldn't tell me soon as I got back access to the account I clicked checking and immediately seen unauthorized transactions which I disputed and got denied I called back they asked me to provide more information but which is impossible because my account was closed I asked them about the adjustment because my account was charged $200.00 32 times for the same amount I asked to file a dispute the representative told me is giving her a error and she have to escalate it it's about the dispute manually I asked to speak to a manager and got denied and hanged up on at this point I don't know what to do