Having taken the plunge on ANU for Christmas I now need to find reliable PCR testing in London. It is 7 days before arrival, so shouldn't be too stressful, but the plethora of testing centres is a bit overwhelming so it would be good to hear if anyone has a positive recommendation.

Apologies, I know this info is on here somewhere, I just can't find it. Mods, please feel free to redirect to best link.