You can always just listen to them on YouTube. There are plenty of people who have uploaded the soundtracks there.
YouTube compresses the hell out of things & the files uploaded usually aren’t top quality in the first place. YouTube can be great for a quick listen, but Tapiture seems to be looking for high quality audio.
I really hate that companies can screw around with your digital purchases without a word being said. Once something is purchased, it should be yours.