Refuelling was stopped in 2009 , the minimum fuel rule was brought in 2010 I think.
Lewis was DQ from the Spanish race in 2012 had to start from the back of the grid after getting Pole.
Hamilton was instructed to stop his car en route to the pit lane because of a lack of fuel to provide a sample of because the refuelling mechanic mistakenly turned a switch to drain Hamilton's car of fuel rather than add some in. The FIA technical delegate reported Hamilton to the stewards for the irregularity. McLaren technical director
Sam Michael argued to the stewards
force majeure caused Hamilton to stop on the track but they rejected the argument and deemed the team to have broken the technical regulations on refuelling.
Finished 8th in the race.