[Resolved]  Xiaomi India — Product not Received and not even refunding my money

I had purchased a smartphone(Redmi Note 10T 5G) and one power bank from their official website on 14th Sept 2021 and the products was be delivered on 19th Sept 2021 but to date(22nd Sept 2021) I didn't get any confirmation about my product from them. They are just giving me excuses.
They are not delivering the product and not even refund my money. I'm feeling mental torture for calling them again and again for my product. Please help me to get my product or money and raise a legal complaint against them.