Reliance Mart — Online order during lockdown

This is regarding an online order that i placed in bhandup west on 9th may 2020. It was a prepaid order, but some of the items were not delivered. The amount i paid was 2747, however have received items worth rs. 1091 only. I haven't received the remaining balance amount of rs.1656 yet. I am disappointed to see that the refund wasn't initiated by reliance on time.
I have tried calling customer care multiple times and have mailed on the id mentioned below.
[protected]@reliancesmart.in