Phone Not Delivered From Three Months

I placed an order for a phone, 3 months ago but I have not received it yet. I did a prepayment of around 31k. From the last 3 weeks, I have been almost daily contacting the customer care, service head, etc. but still they come up with one or the other reason and don't deliver it. My delivery address was initially of Bangalore, but 4 days ago I moved to Jabalpur. I am afraid they will again make this as a reason and make excuses. Even though it was a lockdown in between but I ordered before lockdown and started following up with the customer after the lockdown ended. They don't have a cancel option on the website. However, I didn't want to cancel as I have waited for such long. The electronics industry change very fast and after 3 months new models come. I was thinking of filing a consumer case, but I don't want to lose money. Also, I don't want to go to a court trial. Is it possible to file a complaint just to make Samsung pay for their worst service? Please advice.