Reliance Retail smart point - Payment not refunded

I purchased Groceries from Reliance smart point, Domuhan, Gaya on **.**.****

I first Paid via Phonepe Money was deducted but the bill was not generated in their system cashier said no worries u will get the refund and try paying using another payment method hence believing him again I paid again via Phonepe and its also successful and this time bill also generated but till date i have still not got my refund of payment that was successful from my end.