Hey iv got a gt Zaskar 100 29r elite bike and I haven't seen a quick release type like this one before... its got the pull out bit but no nut on the opposite side theres just a hole going into the hub?? how do I remove this quick release??

I cant take the wheel off lol iv tried googling this type of quick release but nothing???

and gt support sucks!!!!! 3 days and still no answer.