Punjab National Bank [PNB] — transaction amount is deducted to my account. but refund is not send in my account.

Address:	VILL DARIYAPUR RAJDEV POST CHOOKUNI DIST SAMBHAL PINCODE 244302, Sambhal, Uttar Pradesh, 244302
Website:	www.pnbindia.in

Sir,
my name is sobit singh. s/0 lookendra singh. i had done one order on amazon online shoping website. due to some reason i cancel him. that order i paid from debit card. that card number is[protected].
The amazon ones had initiate my payment on 5 july 2019 according to amazon customer service care . he provided me a refrence number- 285103
but my refund is not come in my accont.
amazon order no---.[protected] vivo mobile
my bank name punjab national bank
account number -- [protected]
ifsc PUNB0183100
mobile no. [protected]
gmail---- [protected]@gmail.com
Adress
Vil-l dariyapur rajdev
Post- chookuni
city sambhal
state-- uttarpradesh
please see my transaction statement pdf that provided in below