Our Klarity Basic Antigen And Certificate Package For TUI includes; a Government Certified Antigen test, and a Fit To Fly Certificate. This is a special package offer for TUI customer and has a Complete Self-Test Process and doesn’t include Online Clinician Support. This Basic Antigen And Certificate Package is Perfect for Individuals who need a Certificate for Travel, Work, or Group Events and Activities. Watch a Video tutorial on how to take the Rapid Antigen Lateral Flow Self-Test. Then, Upload and submit A Photo Of Your Antigen Test Kit Results. Then, Get Your Certificate Within 3 Hours between 08:00 and 20:00 GMT each day.