Nhs / dwp certificate hc2 something for free

http://www.nhs.uk/NHSEngland/Healthcosts/Pages/nhs-low-income-scheme.aspx

Any of you in the UK - do you know if you’re on benefits, including DLA, you can apply for a HC2 certificate - I’ve got one and it means all my prescriptions from my GP are free, as well as opticians and dentists - all free - and you can also claim money when travelling for NHS treatment.