Hi all - we're currently charging the slow way on 110 but our garage also has a 120/240 outlet that was supposedly included specifically for electric vehicle charging. It doesn't seem to match up to any adapter that would allow charging at 240 however. When I searched online, I found the matching adapter labeled as 6-20, the specs matched up, i thought "great!" and ordered it - well the prongs are reversed. Tesla advises the 5-20 would match up, but that only allows charging at 120 if I'm not mistaken. Any advice? Here's a photo of the outlet.