Citizenship for RAF application.

My best friend is waiting to kick off her career in the RAF. She was born in Poland and moved to the UK and has been educated here since the start primary school in reception class. She has got all her GCSE's and A Levels and now awaiting to get her citizenship to kick off her career. Any donation will be useful. It is £1,600 to apply and be accepted. Shes wants to be a medic and serve a long time for the RAF.