your post is or was unclear -see later edit below
Are you saying that the flat was being supplied by Pure Planet but someone switched suppliers to someone else before you moved in?
Or are you saying that someone switched suppliers after you moved in?
Or are you saying that you switched suppliers after you moved in?
In any event take a note of the readings (you should have the readings from when you moved in) and if you can some photos of the meters preferably showing readings, you might need them.
It seems your other post has disappeared, it's showing in the list but I can't link to it for some reason however the first few lines which I can read make it clearer.
When you moved in the flat was with another supplier.
You are responsible for paying the other supplier up until the time PP took over the supply which took 17 days from when you switched to PP
The other supplier is entitled to charge you from when you moved in or when your tenancy started to when you switched to Pure Planet.
You should make sure they don't charge you for use before you signed up for the flat, hopefully you have meter readings from when you moved in and readings when you switched to PP.
Originally Posted by Lydia Ntamotsidi