By James Rodger & Joseph Wilkes Money-saving expert Martin Lewis has sounded the alarm for customers of British Gas, OVO, EDF and Octopus who are resistant to getting a smart meter. The financial guru took to Twitter on Thursday to advise energy consumers to check out their best deals despite their smart meter reservations. Martin said: “Want a cheaper fixed energy tariff but either DON’T want a smart meter or are on a prepay meter… currently, rarely, these are available. See…” Mr Lewis said. A concerned customer responded: “Is now the time to fix? I checked the EDF one that the comparison…