Paytm Mobile Solutions — refund amount of 1399 is not credited in my account

Address:

Rewa, Madhya Pradesh, 486002

Recently i am cancel the order 1399 in amzon on date 2nd oct 2019 as process of refund is that refund is processed on date 4th oct and amzon customer said that amount is reflect in my account with in 7 to 10 days. But 12 days has passed amount is not credited in my account. They give refund reference no. But when i am contacted with pay tm bank customer care they tell us that no pending amount in my account.