KFC India — Refund of my order for not delivering

Address:

194,roja enclave,7th street ,thirumalai nagar,hastinapuram,chrompet,chennai-64

I order a box from the kfc app from my nearest store with the delivery option but i didnt recieve it for a long time so i tried calling them they told me we dont accept orders from the app but i sent them the order no and the transaction which i did as a proof they told they will refund my order but till now i didnt recieve my refund .The CUSTOMER CARE is ### and the kfc app is a trash doesnt work properly no tracking nothing fed up with it .