We were enrolled in auto-pay for years, no problems. After switching to Fios we were unaware that we needed to re-enroll for the 'new' account. After being notified that we were overdue we made an online payment and enrolled in auto-pay. We assumed that enrolling once would be sufficient, but it wasn't. We again received a notice of 'overdue'. We again made an online payment and enrolled again in auto-pay. How many times must we enroll in a system that benefits Verizon before it 'sticks'. I don't want to see our credit standing affected due to inefficiencies in the Verizon system.