SBI — refund has not been reflected in my bank account, phonepe app has given me arn no.

Sir i have tried to book a ticket from phonepe app, the transaction was failed the refund was initiated by phonepe. But my money has not been reflected in my bank account even after deadline ends. Phonepe has given me ARN no.
But SBI is not helping me .
Sir pls help.

Arn no. For refund is . 75105179095001758142352

Amount = ₹872.98
Sir pls help sbi is trying to cheat and not reflecting my money in my account.