Employment is a contract, but it's also more than that.
The law gives a number of automatic protections to both employer and worker no matter what any contract says. Even before you secure a job, the law is at work. If your circumstances make it impossible to continue and your employers won't do anything to help you, then your only option may be to resign and claim constructive unfair dismissal. This is usually a last resort, but if the Tribunal accepts there was nothing else you could do, you should be compensated. Getting Help Seek help from any union to which you belong, or get a solicitor to advise you confidentially before you take action.