At some point "Why do casino check ID?" becomes a practical matter for most players. Personal details change: people move, marry, switch banks and replace phones. A casino account has to follow, because its details are checked against documents and payment methods at every withdrawal. Updating them, closing an account that is no longer wanted and asking what data the casino holds are all routine requests, and each has a procedure worth knowing in advance.
Adding a new card or wallet usually needs a small verification of its own, and some casinos ask for a photo of the card with the middle digits covered. Removing an old method is often possible only after any balance deposited with it has been withdrawn. Where the account holds money and the original method has closed, support can arrange a bank transfer instead, once ownership of the new account has been shown.
Closing an account is a request to support or a button in the account settings. Any balance should be withdrawn first, since money left in a closed account has to be claimed through support later. Closure for ordinary reasons is usually reversible on request. Closure because gambling has become a problem is a different step, self exclusion, which cannot be undone early and blocks the casino from reopening the account or sending offers.
Support updates the surname once the player provides a certificate showing the change, for example a marriage certificate.
Support changes it after the player sends a dated document showing the new address, such as a recent bill.
Players can ask what data the casino holds and receive a copy, including documents, transaction history and chat records, through the contact named in the privacy policy.
Adding a card can need its own verification, and some casinos request a photo with the middle digits covered to confirm ownership.