Amazon India — refund not reflected in to my account

Address:

10-3-137, near hanuman temple .global hospital road ,saroor nagar ,hyderabad , telangana,50003,india, 500035

I am cheboyina venkat teja . i paid money of 60, 686 through debit card to amazon and brought laptop due to working problem i returned the product and amazon initiated the refund of 60, 686. and they gave a reference number[protected].they initiated the refund on 09/08/2019.they said that money will be credited by 19/08/2019.and my account number is [protected] till now i did not get money .my phone number -[protected].pls kindly resolve my problem as soon as possible.