nfmalloy21, we know how important it is to be able to manage the payments on a family account, and want to ensure that we're able to provide all your options. Help is here. To confirm, any payments made on your account will go towards the account balance. We are unable to allocate payments towards a specific line of service. If you would like to manage individual lines on your account, I am confident that our Smart Family feature will be of great benefit: https://www.verizonwireless.com/support/verizon-smart-family-faqs/ Let us know if this helps to clarify.