Paytm Mobile Solutions — Amazon product refund initiated to my Paytm bank but money not show in my account

My name Manish kumar and i ordered a product from Amazon on 22 Dec 2021 then I’m return this product for my personal reason, a few days later Amazon initiated refund in my Paytm bank account but still i didn’t get my money in my account. On talking to Amazon, he gave the reference ID in the proof but bank asked to me this reference id unable. So please solve this query as soon as possible. I will be forever grateful to you for this
Thanks you