Domino's Pizza — refund of jan 4, 2020 order

Address:

Kabir Park, Amritsar, Punjab, 143104

I had cancelled one order because the desk executive did not take it right. I was told that amount will be refunded in 7 business days. But after more than 1 month and also taking up the issue with dominoes kabir park, amritsar, nothing happened. The details are:
Date: jan 4, 2020
Invoice number: 66951/19/68031
Order no. 104
Amount: rs. 343.36