Here's a response we have received in the service support
Hello there,
We are experiencing a higher volume of emails and faster growth than we could have imagined. Please expect ample time before we are able to process your request. We apologize for the delay. Thanks for your patience.
Please be sure to check for security updates on steemit.com. These appear near the top, in red, when the browser is refreshed.
Regards,
Ned Scott