Baroda Rajasthan Kshetriya Gramin Bank — refund not credited since 3 nov.2018

I return a product on 3 nov 2018 and its refund not credited in pankaj mehta account. Product name pro adjustable of rs299 purchase from amazon return date 3 nov.2018. I already call and went branch multiple times but still my problem not redolved. Amazon says we reflect this amount in your bank and your bank has to reflect money from their side. Please do some work on it and reflect my money in my bank. Account no.[protected] please do fast. Please...