Hi, I'm currently completing a change of ownership form, few questions:   - for section B, what is a service number and how do I find it? - for section C, can I keep it empty so that it uses the old payment details instead of nominating a new one? - for Customer Service Guarantee, is NBN 50 FTTB considered a NBN bundle? I don't use landline at all, do I need to sign it? ... View more