Delhivery — Kept my 45k electric guitar with them and have not provided any updates

I had ordered an electric guitar worth 45k through rajmusicals.in on 13th July and they have couriered the order through Delhivery. The tracking showed that it arrived in Bangalore on the 17th. But after this, there have been no updates from the Delhivery team. They are continuously rescheduling the order to next day and are not responding to any complaints raised via their website. They have even shut down their call service (probably because of the amount of screw ups they make and calls they get). Please look into this