NBN appointment

Level 1c
Hey! I didn't realise we needed land lord approval, and I scheduled an nbn set up for tomorrow. Is there any way I can change that appointment? The change appointment thing won't allow me to.

Hello booniechu,
Thank you for being a part of the TPG Community.
For verification purposes can you please send me a private message (PM) by clicking on my name and provide the following information:
 Username
 Full Name
 Full Address
 D.O.B.
I will reply ASAP on receipt of the above and arrange a call back for from our Customer Services Team
My TPG app for IOS and Android - https://www.tpg.com.au/download

Level 1c
Hi, I missed the call, and I tried calling the number the text told me to but nobody picked up, and it didn't tell me what I was on hold for. I couldn't hear the message they left.