I was interested in buying some shares of Vivendi (NOT interested in any recommendations/evaluations, the only reason I mention this specific company is that it's relevant to the question) and asked my investment advisor about it, referencing the ticker symbol I get when I look up "Vivendi stock" (VIV.PA).
He responds and quotes me a significantly higher price per share, and then explains that he was referring to VIVEF, and that the difference was they are traded on different exchanges.
But then when I looked up an article about the stock, it referred to another ticker symbol, VIVHY.
What are the differences among VIV.PA, VIVEF, and VIVHY that I should be aware of before purchasing shares? Why are the prices drastically different?