We are travelling to Spain tomorrow. Have paid a lot of money for our 2 children to have their covid fit to fly tests and my husband downloaded the nhs app tonight so he could show his vaccination status to the Spanish authorities at the airport. However he’s been informed that it can take up to a week for his details to be registered. Is this true? When I did my app back in March it took an hour. Any tips on what we can do? Our flight is 7.20pm tomorrow