Many thanks for your patience. whilst an employer should not take into consideration spent convictions that a prospective employee has, if they do and they do not employ them on that basis then your options are somewhat limited.
I refer you to this legal note which deals with the area in great detail:
Specifically have a look at the following section:
“Being refused a job
Unfortunately, this is one of those situations where there is very little you can do.
Although the intention of the ROA was to attempt to make life easier for people with certain types of criminal record, it did not include any provisions regarding the appropriate treatment of all the others. In the intervening years, little or nothing has been done to alter this situation. There is no legal concept of ‘discrimination on the basis of having a criminal record’, as there is for discrimination on the grounds of age or disability.
Your treatment, therefore, will only create a legal claim if it would do so for someone without a criminal record. Where you are refused a job because of your race, sex, religion, nationality, age or some other characteristic protected by the Equality Act 2010, then you can bring an action at an employment tribunal.
Otherwise, the law as it stands, permits an employer to recruit whom he wants; it will not question his reasons or his motives. Refusing to employ someone for having a conviction cannot be the cause of a legal claim, in the same way that an employer cannot be sued for refusing to employ someone because they like watching Eastenders; there is no obligation to engage in reasonable or rational decision-making when choosing employees.”
So unless you can show that their reason for refusing to employ was based on discrimination as mentioned above (it is not discrimination alone to be refused the job for the spent conviction), you will not be able to challenge them
Does this answer your query?