I'm a CHAMPVA beneficiary. Recently I got a bill saying my insurance rejected one of my medical bill claims made by the hospital. So this bill tells me how much I owe. Now I have three questions: First, can we pay this bill via online banking or do we have to send a check? If we can pay online, how do we trace the payment? My name is on the bank account which is jointly owned, and has the name and address cited in the bill. Would that be enough for them to track it? Second, when I logged in to www.peryourhealth.com to check my medical insurance and billing info, I was surprised to find the name of my insurance listed there is TriWest. I think this is TriCare's regional branch in the west coast, which is where I live. But the TriCare web site clearly states CHAMPVA is separate and is not managed by TriCare. Is this an error or what? Third, if we pay the bill by installment (it's pretty big), is there a penalty or interest?