By Charlie Conchie City tourism company London Tunnels decided to snub the capital for its listing after a lack of interest from UK investment banks and a charm offensive from Dutch adviser ABN Amro. London Tunnels, which is looking to raise around £30m to fund the conversion of a complex of World War II-era tunnels underneath the capital, said in January it would be looking to float on the London Stock Exchange this year. However, the company revealed today that it had changed its mind and would now be looking to list in Amsterdam next week. The move will strike a blow to the London Stock Exc…