RandoxCertiFly worked the first two times I used it. Then the third time when I was trying to sign in, it said that I didn’t have an account with that email. I knew that I did, so I tried to reset my password thinking maybe it was a fluke. Once again, I was told that that email was unregistered. So I try to register again. Then after going through all of the registration process, it tells me that the email that I used has already been registered. After three more attempts at this, redownloading RandoxCertiFly , and trying to reset my password, I’m effectively locked out of RandoxCertiFly before using my student email account to make a new account. You can tell that almost no effort went into RandoxCertiFly despite people paying stupid sums of money for what are effectively the same thing as NHS tests, and this being their lifeline for travel. Absolute waste of time.