No, according to the rules of this, this cannot be done. There is only one exception, which is possible.
You can send Support Case with a request to change the name and (or) the name, if you really changed them. This will require an official document. Attach a scan of your new passport to the certificate scan. After that, your last name (or name) will be changed by support.
Support it really does. If you originally invented a first and last name, and you have nothing to confirm the fact of their replacement, you have only one way to make your account legal — register a new account in your last name and first name, and quit the old account. Officially, closing it still will not work, since you cannot confirm, that you own it.