Log in to your account using your login details. After that, you will have the "Delete this account" button available, by clicking on which you will send a request for deletion.
Immediately after sending a deletion request, your account will be deactivated. The account data will be deleted from the servers within 3 days. During this period, you will be able to restore your account: to do this, follow the link in the letter sent to your email.
Along with the account, all personal data of the user is deleted from the servers, with the exception of transaction records necessary for compliance.