Laurie, as we discussed at our Zoom meeting, you might lift up one side of the super, just enough to insert a knife. If wax is what has your frame stuck, you should be able to cut through the wax without a lot of damage to the frame or foundation. Another thought is to lift one end of the super containing the frame you're trying to get out. Instead of pulling up the frames from the super below, the ones this frame is stuck to, tilting the whole upper super will pull down the upper frame. When you have tilted the upper super enough you will be able to get at the spot where the frames are welded together. Another thought is to pry out any frame in the box that will come loose. Take out the one next to that one, then the one next to that one, and so on until you have opened up enough room to get at the bottom of the frame that's stuck.