Green Dot Bank — Money went missing from my card

I’ve spoke with multiple representatives also have filed a dispute even gave them over the limit time to find where money went missing off my cardthey kept telling me to go online and log in but the email that was used didn’t create through Google due to errors at the time and I changed my number had been trying to update it from the start and it wouldn’t allow me kept calling with no help,so about 45 days or so hadn’t used my card hadn’t purchased nothing online and a great amount of money just disappeared from my card account.i need my funds found and reimbursed and they also wouldn’t send me any statements after asking them over and over