I honestly don’t understand why it is so important for you to get permission to share customized gaming materials. There are so many of us sharing maps, charts, cards, house rules here, and I’ve never heard of anyone being asked to stop. In fact, I think drawing attention to customizers by asking for permission to alter their property, might just force WOTC to look at what we’re sharing here, and blackout everything we’ve created. The only reason I can see for getting permission and licensing for copyright materials, would be for the purpose of selling and profiting from such customizations. Any request to WOTC to modify their own publications would surely be taken as an attempt to sell modifications of their product, why else would you be asking for permission a second time when they already told you “No”… just create your map and share it for free like the rest of us, and if they ask you to stop… then you stop. If you are showing WOTC my map file and asking them if you can modify it even more than what I’ve done, than I might get asked to stop… and that would really suck for a lot of people who love my map.