Defective boAt Airdopes 311 Pro – Refund Denied by BigBasket

I purchased boAt Airdopes 311 Pro TWS with Mic from BigBasket. After receiving the product, I attempted to charge the earbuds and discovered that they were not charging. I contacted BigBasket customer support to report the defect and request a refund or replacement. However, the support team refused my request, stating that the product was non-refundable because I had opened the sealed packaging. Opening the package was necessary to inspect and test the product. I did not cause the defect, and I should not be held responsible for a product that appears to be faulty upon delivery. My complaint concerns a defective product, not a change of mind or the return of a fully functional item. I request that BigBasket investigate the issue fairly and provide a full refund to my original payment method or a replacement with a fully functional product. If my request is rejected, I request a written explanation citing the specific policy applicable to defective products and the reasons for denying my request. I can provide the purchase invoice, order details, photographs, video evidence and customer support communications as proof. I request an appropriate resolution under applicable consumer protection laws.