Has anyone had any experience with a company called MHF (mhfcovidtesting.co.uk)? I've found this one on the list of companies approved by the UK for the tests I need, however I have tried contact on-line through their website with no response and also via email. Are they legitimate? I can find the place easily enough, if they are real, but I don't want to give them my credit card and pay in advance on line if they aren't. I would prefer a clinic for my testing. Or any other suggestions? I know Boots does some covid testing at certain stores, but their email responses are vague. Thanks for any help.