Some things can be forced without a visit. When my IHD failed to show data after a tariff price change I phoned octopus customer service to be told sometimes the transmission of data to the smart meter coms unit and then to the IHD gets corrupted. They arranged (with the third party) for the updated information to be sent again and was told this would be overnight within 2 days. Two days later the IHD was working again. However this was a loss of communication between the IHD and the meter coms unit.