[Resolved]  Hathway — Broadband Internet terms

The sales person that signed me up had told me that I will get 15 days of free service plus 3 months of paid service if I took the connection for 1770. He generated the payment link and made me pay. He promised that I will get Rs. 400 back also. Now the company representative says that company promises no such thing and there is no platform to raise a complaint. They are just scamming the customers. So essentially I am not getting the 15 days of extra service and also the 400 money back they guaranteed. And there is no platform to raise complaint on their website that I have seen.
I have the call recording of the sales person confirming this deal.