We've received a letter from BG offering to upgrade to a smart meter. Apparently it sends the readings directly to them by internet.
We are planning on moving from British Gas as soon as we can get organised (currently renovating the house to move back in) as they have taken 5 months to sort out their billing issues with us (including sending us bailiff's warning letters!) and they have been dreadful customer-wise.
What happens if we let them install their smart meter and then we change supplier?