Banglalink provides an emergency balance service for its prepaid customers in case of low balance. To activate the emergency balance service, customers can dial *874#. Once activated, customers will be able to make emergency calls and send emergency SMS even if their main account balance is zero. The emergency balance amount will be deducted from the customer’s main account balance once it is recharged.

Please note that the emergency balance service may have certain terms and conditions, such as the amount of credit available, and the validity period, so it is best to check with Banglalink customer care for more information. Also, the service may be subject to change according to the network coverage and the location of the customer.