For information on how your Student Finance application is assessed as an estranged student take a look at the following guide: https://www.standalone.org.uk/guides/student-guide/  .  This guide will tell you about the supporting documents that may need to be provided to confirm your irreconcilable estrangement

For student from Student Finance England, the following guide will also provide further guidance: http://media.slc.co.uk/sfe/1819/ft/sfe_how_you_are_assessed_and_paid_guide_1819_o.pdf 

If may also be useful to take a look at the Careers website https://www.edgehill.ac.uk/careers/  to explore part-time work and perhaps generating extra income to supplement your student funding