Punjab National Bank [PNB] — refund amount not submitted on my a/c

Address:

Burdwan, West Bengal

Dear sir. I have purchased two online product from amazon. Amazon customer care refund amount on my a/c. And they are mailing on my mail id. But those amount not credit in my punjab national bank a/c. The reference id is on this transaction are 1. 138329 and 2. 938129. The transaction id are 1. 7aspatcmdoz and 2. 6przwvao3wy. On date 29/07/2018. Plz solve this...