I bought iPhone 13 in November-2021 but Cash back not received till now

I (Akanksha Sharma) bought iphone13 (Invoice no ULA212203374 Dated 2nd Nov 2021) through HDFC Credit Card, But I didn't receive cash back of amount 6000/-

Store Detail -

 Unicorn Infosolutions Pvt. Ltd.

Shop No. 23, Palam, Opp Halwaisa Market,

Hazratganj, Lucknow-226001