If you quit work to get away from intolerable working conditions, you may be able to claim 'constructive unfair dismissal' under the Employment Rights Act. Your claim must be submitted to an employment tribunal within three months of the day you last worked.
Think very carefully before walking out. Bringing a claim of constructive dismissal in the tribunal is a very difficult and uncertain process. Even if you win, your compensation is likely to be limited. See What if I walk out because I can’t stand it?. You should always get advice first.