Sometimes things reach a difficult point with employers and it can be extremely valuable to take professional advice despite the cost.
I have found that, where there has been disability discrimination, poor procedures, inappropriate disciplinary procedures etc. that people feel they cannot take a confrontational approach with their employers, to ensure that everything is done properly, without legal assistance.
I usually recommend Karen Jackson and her team at Didlaw Solicitors (www.didlaw.com) who, not only have expertise in this area, but are sensitive to their clients’ mental health needs, and more importantly, they meet their clients’ goals, be it a negotiated exit from employment or a personal injury claim.
Clearly you need to take your own view as to which professional legal advice you wish to take and there will undoubtedly be other solicitors with equivalent expertise.