In Parliament, the health secretary said that sick people who are desperate for a swab should not 'game the system'.
Munira Wilson, the MP for Twickenham, asked him: "Like many others, I've been inundated with emails from doctors, teachers, parents all unable to access the tests they desperately need.
"However, a number of them have also been advised if they put an Aberdeen postcode into the system they can get a test in Twickenham, and they have succeeded.
"Could the secretary of state please tell me how a world-beating test and trace system is functioning in this way and what is he doing to fix it?
"In the meantime, does he recommend I tell the constituents to gain the system in this way?"
He replied: "No Mr Speaker, in fact, its incumbent on all of us to take a responsible approach on its constituents that tests are available in large number and that the average distance travelled is 5.8 miles and that people should take this seriously and not gain the system."