Review and increase expense rates for employees travelling outside the UK

We need these rates to be revised by HMRC so they are up to date and fair. If a flight is delayed by an hour this can mean dropping from the 24-hour rate to the 10-hour rate. This is a common occurrence in air travel so crew are being penalised for something out of their control. The scale rates should provide a wider range of rates for different time intervals, so that people falling between rates are not unfairly penalised. Rates for all countries also need to be increased to reflect actual costs.