Boult Audio — Didn't get the reward

On 10th November i ordered a boult storm x from Flipkart and it was delivered on 16th November.
Then on the afternoon of 17th November i got a call from a boult executive and he asked me if I bought the boult storm x from Flipkart, i said yes.
Then he said that if i review the product on the Flipkart and share the screen shot with him then i will get a guaranteed reward of minimum 100₹ paytm cash and further more.
I did the same and shared the screen shot with him then he said it would take 72 hours hours for your reward.
After four days, when i didn't get any information about it i tried call him but he didn't picked up.
Then i tried to complaint on Boult two to three times i even raised a ticket with no. 203721 but my issue isn't solved yet.
Whenever i call Boult customer care they always say that we raised it and you will get your reward in two days but now its been 2 months.