Nokia — Blacked out Nokia Tablet sent for repair and no updates from Nokia ebuilder

The Nokia T20 tablet was in warranty and I sent for repair through there ebuilder site. The tablet was received on 4th December and since then they havent updated the status for repair and I am asking them for sending it back because its more than a month now.

Despite of sending tons of email and calling there customer service no one knows what has happened to the tablet.
Below is the order number and the site where I booked the repair.
Order Number #[protected]
https://nokia.ebuilder.com/en_IN/confirm