Dell India — fraud of software by dell india

I purchased a laptop dell inspiron 13 5391 from official website of dell india on 19 june 2020. At the time of purchase, there was an offer for free lifetime access to microsoft office home and student version 2019. Dell website showed that it costs for 5990 rupees but it is free for me if i purchase the above said model. I am attaching the screenshot of the offer with this complaint. When i received the laptop, i did not get the ms office software which is activated. It was supposed to carry an activated ms office when i got it. To get the access to ms office software, i called dell customer support service for more than 6-8 times (Almost 6 hours). On each call, they transferred my call back and forth between their customer care and technical support division. Each time they transferred my call, i explained the problem to their every agent, but they did not help me. They are saying that now they can not help me. I have to pay for the ms office if i want the access. So they are betraying clearly and loudly.