Bisleri International — Product hasn't been delivered

Address:

Bisleri International Pvt. Ltd., 60, Shivaji Marg, New Delhi - 110015

I bought a subscription of Bisleri 20L water bottle for 3 months and paid all amount in advance, scheduled it to be delivered on Saturdays. This order on 23rd September 2021, and first delivery of my water bottles was supposed to be on 25th September 2021. Today its 29th September 2021 but I still haven't received a single water bottle. I tried contacting Bisleri but half of the time they won't pick up my call and other time their phones are switched off. Please resolve this issue quickly or refund me all of the amount I've paid.