I've put this here as there doesn't seem to be a board for household bills or utilities.
I'm hoping this may help the ever increasing numbers of us who are being pressured to accept smart meters, particularly if you struggle paying your bills. Companies are increasingly changing these to prepayment remotely, so if you cannot pay you are effectively disconnecting yourself.
For anyone interested, it turns out you can actually purchase your own gas or electricity credit meter, and have it installed yourself if your energy company refuse! Some companies charge hundreds of sounds to install a standard credit never instead of a smart meter. However, more and more companies are saying you can't have one because they don't have any, or are no longer available, but this is an outright lie.
This company give advice, and can also provide meters and perform installations.
www.crownenergy.co.uk/faq/electricity-meter-faqs/#:~:text=You%20can%20legally%20install%20your,a%20dangerous%20procedure%20to%20undertake
This company sell standalone meters, both gas and electricity. Electricity under £50, gas from as little as £20. Obviously, you would need to obtain the relevant advice as to what would be appropriate for your property.
www.electricmetersales.co.uk/
I really hope this helps someone.