Is your PhD funded by a research council or do you have to pay for it yourself?
I noticed you mentioned international fees - UK students can usually only afford to do PhDs if they are funded by a council and receive a stipend of about £12,000 per year to cover living costs. We don't pay fees (I don't think) as the PhD is solely research and there are no compulsary classes to take.
UK students do pay PhD fees! I work in a postgraduate department and our students pay £3168 per year, the same as our MA students There may not be compulsory classes (although we do run a research methods module in their first semester) , but they receive regular supervision from two members of academic staff, have their own workspace, use of all university facilities (libraries, gym, computer clusters), a photcopying allocation, plus all the paperwork and admin that arises during their time here. Some of our students are on full or part scholarships, some are working part-time, doing bits of teaching - often living on the breadline.
According to our Scholarships Office booklet, Career Development Loans from banks are only available for taught masters degrees.
I imagine Grant is on an ORSAS (Overseas Research Students Awards Scheme), which pays the
difference between overseas and UK fees (usually around £5000).