Am I entitled to redundancy due to a restructure?

My organisation has undergone a restructure which will increase headcount. However, my role and grade do not exist in the new structure and I have been notified my role is ending. I asked my employer for paid time off to look for other work and I asked if any of the suitable alternative roles which I am free to apply for would have a four-week trial period – both of my requests were refused on the basis that the restructure is not a redundancy situation. Just before I was due to  leave, a new role was created for me – it’s  temporary and a job description will be drafted soon, but I haven’t heard anything since. In my view they haven’t followed the due process and the implied mutual trust and confidence is lost. Am I entitled to redundancy as my role no longer exists in the new structure and there are no suitable alternative roles that I wish to apply for? What are my employment rights in this situation and what legal claim do I have for an employment tribunal?