Recieve an email when the passwords are exported

A couple days ago some of my accounts got hacked and Bitwarden was one of them. I have 9 emails that said some devices have logged into my account and their IPs. I noticed that and changed every important password. The thing is I would like to know if the vault have been exported, because I have credit cards in the vault and I would like to know if i should request new card details from the bank. So I think sending an email to the owner, informing him that his vault has been exported is another security layer that lets you know if someone has all your passwords.