I think some of the low testing numbers now can simply be put down to it being too late for many people. The majority of people do actually seem to have spent most of the last 6/7 weeks at home so are unlikely to currently have it & be in need of a test. If 100,000+ had been available a month or more back or if this was tests to see if you had actually had it rather than have it now it would be an entirely different story with queues everywhere for tests