Applying for Finance with Parents Leaving Country

Hi,

My situation is pretty strange. I am not a British National, but I have lived here for over 12 years which entitles me to the full support from the government. I have had a permanent address here for 12 years, which I can prove.

Now, my problem is this: For the last 4 years or so I've lived only with my mother. 2 years ago my father became imprisoned and now he is in a mental institution indefinitely. Before the start of September this year, my mother will leave the country and I am starting second year of university in October.

I am staying in the UK, I have accommodation with my extended family for September, and next summer I have an industrial internship. How do I convey this to student finance England? They want me to have an out of term address, which I won't have next year. What should I do? How do I fill in the forms? With my current address? And what do I put as my parent address? It's just super confusing.