Button14

I will be arriving from the UK on wed 30th march to join wonder of the seas on Fri 1st April and have no idea how or where to get an antigen test from for the pre cruise test I am able to take an antigen test at the UK airport but so stressed and worried that it won't be accepted These tests are permitted for arrival in to the USA so assuming they will be ok for the precruise Please help?

Is anyone else having problems uploading covid vaccine certificate to the Royal app. I added mine perfectly fine then straight after tried to do companion for it to keep failing or waiting to validate. Will this cause problems checking in ? Thanks