Legal Review of Consumer Case Against Utility Provider (UK)

I am seeking a UK legal professional to review my (consumer) dispute with a utility company and assess on potential claims. The dispute spans about 2 years. It touches on dispute (complaint) handling, debt collection practices, credit reporting, and data protection obligations. I have a document prepared laying out the entire narrative. It is very well documented. My initial ask is for someone to review it and give me their judgement, and thoughts on what the best course of action is within various budget brackets and risk tolerances to cost exposure. This is originally a dispute over a small sum, but the fight is principled (and not likely for everyone). I prefer highly practical people.