There is a scam going around at the moment which sends a text message like the above, claiming to give a link to apply for an energy discount.
This is clearly a scam as the £400 discount will be applied automatically – there is no need to apply for it. The texts, one of which I received, come from an unfamiliar number, whereas official NHS or government texts usually say so on the contact details.
My advice is to delete this text and never click on any unfamiliar links. The best source of trustworthy information is the government website.
If you think you’ve been the victim of a scam you can find information about what to do here.