You may wish to contact DV Assist (a specialist injunctions service) on 0800 195 8699 (24/7) or via their website: http://www.dvassist.org.uk/
DV Assist are a specialist service for Non-Molestation Orders and legal advice. They provide a free, fast emergency service to survivors of domestic abuse. Please contact them if you have any queries or doubts about applying for an injunction as they are happy to offer free advice and support where possible.
There is a link HERE that explains how to access a non-mol for free, just by downloading it from the gov website, and there is also a lot of info on there including how to complete and serve it.
Also Rights of Women has very helpful advice on how to get one, it can be immediate, depending on how you do it.