Punjab National Bank [PNB] — refund not processed by pnb

Address:

560040

I ordered wacom tablet through amazon and had to return it the next day (18.02.19) and i have been waiting for refund since 1.5 months for an amount of rs. 6920. Called the customer service at pnb several times. They asked me to contact the branch, contact amazon hq, etc. Amazon customer service told me file a charge dispute with reference number[protected]. And i did so. No response from the team.