Indian Bank — amazon order

I had done a payment on amazon it was refunded on may 20. But till now it was not reflected in my account. The reference I'd was[protected]. I need a refund to get in my account. On may 20. The refund was initiated. On may 27. Th. The amount was refunded. They are saying like that. But it was not credited in my account.i need my money to credit in my account