RBL Bank — not receiving of rewards as promised

Address:

New Delhi, Delhi, 110062

The worst bank ever, i have received a promotional sms from rbl bank on 2nd november 2018 where is clearly mentioned that i have to spent a particular amount before 10th november 2018 to get an amazon echo dot of rs. 4500/- and i did to spent more than particular amount but after the 70 days of offer ended. They are unable to give me the promised item. I have called and written so many email to them but haven't received any satisfactory reply from thier side. Every single time they asked me to wait for 3 working days. It am totally disappointed from them. Now, i am thinking to get them to consumer court for lier promise.: (