3.9 The total payments to date are broadly in line with forecasts at the time the contract was let, although there are balancing discrepancies in some services. For example, payments for the Packet Switched services are now expected to be some 20 per cent lower than forecast. This is largely compensated for by a large increase in the use of the new Local Area Network Interconnect service which was not foreseen when forecasts were prepared as the latter was a new service. The tariffs for each of these services are broadly similar so this has had little effect on overall spending.