Meter readings after new meter fitted

Hi we had a new meter fitted a few months ago. After submitting a couple of meter readings I noticed that my usage from August to September was over £900. This is impossible as we did not have the heating on as this was in the middle of a heatwave. Also our winter usage was only £100 per month on average over the winter when we had the heating on. Can anyone please let me know how this has happened. Thank you

Hi we had a new meter fitted a few months ago. After submitting a couple of meter readings I noticed that my usage from August to September was over £900. This is impossible as we did not have the heating on as this was in the middle of a heatwave. Also our winter usage was only £100 per month on average over the winter when we had the heating on. Can anyone please let me know how this has happened. Thank you

Purely as another customer.

Obviously your energy usage is incorrect. However when Bulb worked out your usage did they use the meter readings you supplied to them?