Reliance Digital — Charging for handing over a copy of OS in Pen drive for a new laptop purchase

Address:

City Centre, 2nd Floor, Mangaluru, Karnataka

I have purchased a LENOVO model laptop from reliance digital on 18/11/2022. They have offered me a competitive price, the reason for which I decided to purchase laptop at their store. But after the billing, they asked me to buy a pen drive so that they can give me a copy of OS for future use, in case required. I had a pen drive of 16 GB and hand overed the same. Then they told me that still I have to pay them Rs. 600/- for that service. I did not get ethics behind this act. I believe this is level 1 scam. Please address this issue.