Green Dot Bank complaint: theft from account

I have had a WalMart Money card now for several years with no problems until Friday Aug. 6, 2021 when my account was hacked and a transfer was made in the amount of $500 usd usinge-mail address I’m using now to inform me transaction so I Called custermer support only to be told to go to an atm and withdraw my money then contact them again dnd I did only to be denied withdrawl using my card after I first did withdraw 200 usd and then denied knowing I had over 4700 usd in my account so I came back home and called support only to find out that a transaction of $4250 usd was made on my account in new york and blocked my account and tried to file a dispute on the transactions and was told I could not until those transactions actually cleared my account.. After that I did filed a dispute only to be treated like the perpitrator and not the victim and can’t find out any information on the issue on hand other than my address does not match my file or my e-mail address even though I have the e-mail information sent to me on the $500 usd transfer at my real e-mail address of which I have emails from walmart money card all the way back to Feb. 2018 in my files.. I cant believe no one will respond to this large amount of money stolen to me.. Is there any way other than me filing a suit against walmart and green dot for the lack of security you provide to your coustomers namely me..