The convenience fee in Paytm Postpaid is a nominal charge that is applicable to monthly expenses incurred by users of Paytm Postpaid Lite and Paytm Postpaid Mini. This fee is imposed for using the Paytm Postpaid credit facility and can range from 0% to 3% depending on the users transaction history and the agreement signed with the lender. It is important to note that late fees are charged only if the user fails to pay their dues by the due date, which is typically the 7th of each month. The convenience fee is added to the bill, which is generated on the 1st of the following month, and can be paid through the Postpaid section on the Paytm app. Users can avoid the convenience fees by not using the credit facility or by permanently closing their Paytm Postpaid account if they do not wish to use the service in the future.