99% of  our test results are delivered on time. We have facilities across the UK and offer hundreds appointments everyday, including Sundays and bank holidays. We accept walk-ins. Our UK based customer care team is available 7 days a week and our laboratory tests 7 days a week to ensure you get your results on time. Please note that we use an external laboratory for processing all our PCR & Fit-to-fly tests and have no control over their processing times once we have couriered your sample. Laboratories may need to repeat tests or prioritize other samples which could impact upon the time you receive your test. London covid testing clinic is unable to provide any compensation for costs you may incur due to delayed results.