Reliance Digital — booked product not deliver in time

Address:

410206

I purches a TV unit of Sony 32inches from Reliance Digital CBD belapur store on 21st Oct 2019 and they assure me to deliver it on next day...but tilll date I did not receive the product .
Meanwhile I try to communicate with the store through contact no. Available on voucher but they did not respond .
Finally I call to your customer care 2 days back they also not reply in time .
Today I receice call from CC that delivery is delayed because the product is not in stock...
Plz help me out