Moving house, closing account

Hi, I am moving out of my house into a shared property, how much notice do I have to give and how do I view how much credit I have, and how can this be refunded?

https://help.bulb.co.uk/hc/en-us/sections/360007165271-Moving-in-or-out

Hey @fitnessdoncaster you can process your moveout in your online account and submit readings around your move out date. We’ll send you a final statement within a few weeks and refund any credit to you within 14 days of the statement being sent out