Compliance Interview letter

I am an Appointee of my 25 yr old daughter who has eubpd bipolar depression dyspraxia anxiety depression self harms etc ..
A letter arrived addressed to her rather than me as her appointee informing of a telephone compliance interview in a few days with my telephone number as the contact.
I’ve recently applied for student finance for her for a post graduate course.
She had student finance last year and is just finishing her course.
She has an enormous amount of support from the college regarding her mental health and they’re been amazing accommodating her needs.
She’s currently receiving ESA and has been in the support group for years and receives PIP both enhanced rates.
Has anyone any advice on why they are calling for this compliance interview and why they sent the letter to her rather than me as her appointee but have listed my number they will call ?
I’ve heard there are some scam letters circulating and there is no National insurance number or mention of which benefit this interview relates to.
It also has numerous spelling mistakes throughout the letter and the address says at the bottom England then England underneath?
Luckily she hasn’t opened the letter as I have and it says to have bank account details pensions,savings information ready for the telephone interview????
Any advice will be sincerely appreciated.
Many thanks
xx

The telephone number on the letter doesn’t come up on the internet , I don’t want to call it as I’ve only just sorted a scam I’ve stupidly fallen for regarding a text message supposedly from my bank (now I know it wasn’t)and my real.bank have blocked my account etc …
The number on the letter is :
0300 038 3057
Any advice pleeeeeease
Many thanks