Refund from Ajio with interest.

I had ordered a shirt of the brand Bud Jeans Co. from the Ajio app and paid in advance when I ordered online. I had made an online payment to the company. The app had promised to deliver the order on September 16. Accordingly, I received a call from their delivery person. However, he cancelled the order without delivering it and returned it. It took 5 to 6 days for this to happen. My expectation was that I would not get the product I ordered or a refund. I called their customer service and asked about it. They informed me about the refund and told me that they would not be able to deliver the product. Therefore, I want the product that I ordered or the payment that I made with interest.This is my humble request. This company used my money for a month and didn’t delivered the product. So i wanna say that I didn’t gaved them money for their help. I paid them for a product they promised me to deliver but they didnt. So My expectation are that they should pay me with interest for their fault and my inconvenience.