just recieved the dreaded PIP form

Please forgive if i'm doing this all wrong but first time using forum! I'm supporting a friend with his PIP claim. He is currently in receipt of DLA . We made the initial telephone claim for PIP last week. He's not good on the phone so I did most of it. So we've just been waiting for him to get 'the dreaded PIP form' . . hence joining this thread . . instead of which, he has just texted me to say he has received a letter saying:
'Thank you for your recent request for us to use your current DLA medical evidence. We have obtained your DLA filebut no current medical evidence was present therefore no medical evidencehas been forwarded to PIPS benefit centre. You can however send in copies of any further evidence you already have and this will be considered in your claim to PIP.'
This makes no sense on so many levels, not least that he has not yet actually made a claim for PIP (has he?! ) if he hasn't completed the 'dreaded PIP form??? Being fairly well-acquainted with DWP shenanigans and having treated your guides as the Bible over the years and especially with regard to helping with what is already feeling like my friend's 'nightmare PIP journey, I wonder if you have any idea what they're up to? and how should we respond. Many thanks for your patience in this.

Thank you for this Gordon. Last DLA assessment and medical evidence 2013. He will get up-to-date medical evidence from GP, psychiatrist and CPN, plus possibly other supporting evidence to send with completed PIP claim form. It was just rather disconcerting to get that letter . . I don't remember anything being said about it in the phone call or reading about that possibly happening in the Bible!! But all is well, thank you so much again.