Jiomart — Problem regarding Product Return

I had purchased a camera lens protector for the Reno 8 Pro Plus 5G from JioMart. However, when the product arrived, I was not satisfied with its quality, so I requested to return it. When the delivery boy came to collect the product, I asked him for the OTP, to which he replied that he sometimes doesn't receive OTPs. Suspicious of fraud, I took a photo of him. Suddenly, the delivery boy threw the product and left, saying he would only pick it up when he receives the OTP. I contacted JioMart to inform them that their delivery boy misbehaved with me and that I had requested a return. For four consecutive days, I received notifications from the JioMart app that the product would be picked up today. It's been four months, and the product is still with me; no one came to pick it up.

After repeatedly complaining to JioMart's customer care five times, I haven't received any satisfactory response. I then emailed JioMart, and they replied saying I have given maximum return requests, but nobody from JioMart came to pick up the product. I think that it's the duty of the delivery boy to pick up the product, but due to some reluctance, he hasn't come to collect it from me. I sent them another email, confirming that nobody came to pick up my product. They responded again, assuring me that my problem will be resolved within 4-5 business days. However, it's been a week, and my problem hasn't been solved, and no one has come to pick up the product.

Please help me resolve this issue, and I have attached pictures of the email correspondence for reference.