The instructions for the Privatecoronavirustest.com site makes it clear that a 2mL sample is needed and a specimen tube is included.
But for most people getting a 2ml sample isn't possible unless you have access to a NHS person willing to collect the sample, or perhaps a vet.
They tend to be less bound by rules!
I agree, this test should be available free of charge for anyone with a valid reason like teachers, care workers and so on.
