if getElementData(k, "EXPEvent250") then
elseif getElementData(k, "EXPEvent500") then
elseif getElementData(k, "EXPEvent750") then
elseif getElementData(k, "EXPEvent1000") then
Me parece que lo que queres usar es:
if getElementData(k, "EXPEvent250") or getElementData(k, "EXPEvent500") or getElementData(k, "EXPEvent750") or getElementData(k, "EXPEvent1000") then