Reliance Mart — Refund about not available item.

I have Placed my oreder on 07.03.2024 vide order no is[protected]A Rs. 1321.00 less instant discount 10% Rs. 132.10
amount paid Rs. 1188.90 by ICICI bank Debit card.
while my order process, one item cycle agarbastil amount Rs.99/- not avaiabel.
My bill prepared without instant discount Rs. 1321 less Cycle Agarbati amount Rs.99/- net bill is 1222/- they have only less in bill but actual amount
have not given as refund Rs.99/- which I have paid by my debit card..