Khosla Electronics Selimpur — promised gift not delivered

Address: selimpur, Kolkata, West Bengal, 700031

I had purchased a samsung microwave on 23-12-19 from khosla electronics selimpur and was promised a borosil microwave cooking bowl set. Firstly it took them three days to deliver the product after umpteen number of follow up and then even after passage of 1 month they have not delivered the gift siting one excuse or the other. I fail to understand why they promise on something if they are not in a position to deliver them. I am really disgusted with this agency