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yesterday
£147.00 is very excessive for 1 month this must be for 3 months
yesterday
It will indicate the period it covers in the detail of the bill, @trevado.
If you are a former Shell Customer, some migrated accounts seem to have a quarterly billing cycle.
You can also check by calling the Shell Migration team on 03451 720088 (9am - 7pm), if that's the case.