Gas meter reading

I have manually entered a meter reading but it is lower than expected. Just before I ended my account with EON they fitted a new smart meter I wondered if the readings had got mixed up?

@Chorlton1 I think you may have nailed the issue. Can you please send us a picture of your new meter – and the yellow sticker showing the installation details that may be on it or just below it – to help@bulb.co.uk?