So I ordered this test weeks ago, super organised. Have to take it within 72hrs of flight, which is tomorrow evening. Just taken both and done forms, sealed boxes only to discover Royal Mail apparently won't collect it until 11 to 3:50pm tomorrow! There is no label on the box/for the boxes so I can post them, they seemingly have to be collected. The name of the company even has RAPID in it, which is now seemingly ironic. What can I do? Please help!