Citibank — December Citicard Statement shown the refunded EMI for payment Card ***********8883

Address:

28, Ground Floor, Sivaram Homes, Chettiar Agaram Road, Vanagaram

During Deepavali Amazon offer, I placed order on New 5G Mobile Phone
with exchange offer using, NO COST OF EMI FROM CITIBANK ORDER NO[protected] Dated 19/10/2022 and subsequently cancelled the order. The merchant refunded money back to Citibank card on 24/10/2022.

December statement showing the EMI of Rs 8366.46 plus int and CGST and SGST

I called the Citi Credit card section, but there is answer is EMI is reflecting the statement means I have to pay even though money is refunded by marchant

Please help me to sort it out the issue