Thank you. if you have already raised a formal internal grievance and that has not resolve the matter you need to consider you next steps. You can either stay in the job and make a claim for disability discrimination and victimisation, or you can resign and claim constructive dismissal and discrimination/victimisation.
You have 3 months from the date of the alleged discriminatory act to make the discrimination claim or 3 months from the date your employment ends for the constructive dismissal claim.
A new feature in the employment tribunal’s claims process is mandatory early conciliation with ACAS. This requires prospective claimants to notify ACAS and provide details of their intended claim and they would then try to negotiate between the claimant and respondent to seek out of court settlement in order to avoid having to take the claim to the tribunal. It is possible for the parties to refuse to engage in these negotiations, or that they are unsuccessful, in which case they would get permission to proceed with making the claim in the tribunal.
If negotiations are initiated and settlement is reached, then the claimant would agree not to proceed with the claim in return for the agreed financial settlement.
The conciliation procedure and the form to fill in can be found here:
In terms of the time limits within which a claim must be presented, the early conciliation process places a ‘stop’ on that and the time between notifying ACAS and them issuing permission to proceed with the claim would not count for the purposes of these time limits.