Indian Bank — refund not get amt rs 1299

Address:

Bharuch, Gujarat, 587

Dear sir

I have purchased online from amazon boat roks 400 bluethooth handset. After delevary some technical issues i return this product 3rd feb 2019.
Today i call amazon custmer care they speak we have refund your amt rs 1299 all ready 6 feb 2019.
But my refund not credit in my account (My a/c no is [protected]) in indian bank. From bharuch branch.
And bank not reponce to my help and refund my amt

My refund reference no.[protected] for the amt. Rs.1299

Pls give me my refund for the amount of rs 1299 as soon as you possible