Byju's — Product not received even after 25 days

Website: shop.byju.com

I have order from Akash Byju website the tablet program sd card, upon completion payment receipt and order confirmation was send to my email. But even after 25 days no news regarding order status, tracking number, etc. has been provided to me. I have called the customer care numerous times and they are useless in resolving my problem. i have already paid a huge amount of money and i have never been so frustrated ordering something from the internet. If not resolved soon I plan of taking legal action. Very bad experience ordering from such a reputed company.