Reliance Mart — I have not got refund from last 4 months

I have ordered some grocery from reliance mart on dated 25th april during lock down. I have made online payment. Till date neither got delivery nor refund. I have generated complaints many time via mail as well as on customer care toll free no. Every time they are saying we will resolve it in 7 working days.
Complaint no. Is [protected].

Please help me to get my refund.