Can't disassemble pole...MegaBrand

Hi everyone! I'm sort of having a dilemma. I have to move out soon, but my MegaBrand pole will not come down. know I know...I should've gone with an X-pole, but I did not do my research and went with what was cheap and had good reviews. Basically the flange nut is so tight that I can't find a way to unscrew it. Here is a picture of the parts, and the flange nut is what needs to be loosened first to start the process of getting it down: http://articles.alexquintana.nethttps://pub-a085b59791bc4c1a94b0a223a67a37d6.r2.dev/wp-uploads/2013/07/51kCAKuOf9L._SX342_-300x300.jpg I've tried the following: putting one of the metal sticks in the indent of the flange nut and hammering it to the left, putting a rubber band around the flange nut to create friction and try to unscrew it with a wrench, and purchasing a rubber wrench to try and unscrew it. Nothing has worked. I looked up the release tools for the x-pole, but they don't look like they will work with the brand I have. For the record, this brand of pole has been great, I can see why it has good reviews. It's just taking it down that is a hassle. I wonder if I would have this problem if I took it down each month to clean the parts and what not. I Googled this issue and saw some people had the same problems, but no solutions -_- although one girl said she paid a car mechanic $20 to come over and disassemble it, but never specified how he did it. Thanks to anyone who can help!