Perhaps I'm being overly cautious, but I'm constantly getting scam texts from The Royal Mail, Hermes, HMRC, and various other companies so am always very wary now of scam links. I've received two texts from something called 'GP Surgery' telling me to book my jab and offering me the Pfizer vaccine (detailed in the text) and directing me to a link to book it: accurx.thirdparty.nhs.uk/r/xxxxxx