My experience with Confirm testing did not inspire confidence. The inadequacies began with the first lapse of not sending me the actual confirmation code needed for the UK Govt. Passenger Locator Form in a timely manner - I was actually at my departure airport's ticket counter, 2 days after my purchase from Confirm, with no code. I had to email asking for it, in the middle of the night UK time, so never heard back from Confirm until after my flight actually landed in the UK. No use there. Next, although I landed on May 3rd, when I went to register my information on the Confirm website on the 4th, the site would not allow me to back-date my arrival info to the day before. Therefore, every attempt to register a test after that was inaccurate by a day. Again, no use. Thirdly, I emailed asking if Confirm also offered the "Rapid Results" test for the 5-day Early Release Program and was told "yes. It turned out this wasn't the case. I paid *99 pounds for such a test, only to be sent the regular kit, which took 2.5 days to return the result. In effect, I paid the *99 pounds for nothing. For the third time, no use. If I hadn't been able to secure a true "Rapid Results" test on my own, I would not have been able to Release Early. Although responses from Confirm staff were cordial, the actual performance of the firm's services were, frankly, unacceptable. If asked, I will recommend against using Confirm Testing.