Hey there @Felicia1976. Thanks for reaching out to us! Unfortunately, this process cannot be done online. You need to add or make payment on the account, and after the payment is process you need to contact one of our agents so they can apply the payment to the BoostUP! Let us know, if you've any other questions or concerns.
You just need to click in one of our usernames to access our profile. You will see a button labeled "Send This User A Private Message" on the right side of your screen.
Hey, Ron4boost! Yes you are able to make a full payment for the remaining balance. You could complete the process at your nearest Boost Mobile store, online or through customer service. It is recommended to make the payment online to avoid extra fees. If there’s anything else that we can do for you, let us know.