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I am afraid that a Will is, initially,a private document, and only the beneficiaries and Executors are entitled to see it. However, if and when Probate is granted (Probate will be required if your Father's Estate is worth more than £5,000), the Will becomes a public document and memebers of the public are entitled to a copy for a nominal fee. Application needs to be made via the post to Leeds Probate Registry.
Depending on how involved the Estate is, Probate is normally granted between 3-6 months after the date of death.
I appreciate your disappointment concerning the situation, but I'm afraid there is little you can do to dispute the Will/make a claim against your Father's estate unless you were financially depenedent on him, which I don't think you were. On the basis that a Solicitor prepared the Will, it will normally be cast iron.
I am sorry my Answer is not perhaps the news you were expecting, but I hope I have set out the legal position and assisted you.