PhonePe — flat 50% cashback not received for first airtel payments bank transaction through phonepe

Website:

www.phonepe.com/en

Flat 50% cashback for first transaction of airtel payments bank through phonepe was not received. Transaction done during the offer period mentioned and was an eligible transaction as confirmed by the customer support.
A complaint was registered regarding the cashback not received on 8th nov and they gave a tat of 48 hours and then 24 hours and again 24 hours and then now infinite tat, stating case already escalated to relevant team and no response from the team yet.
I made a transaction of 150 for which a cashback of 75 has to be received which i did not receive as per the offer fulfilling the t&c.
My phonepe number is : [protected]
Ticket no: 3800818.
Need a resolution asap..