Yeah. If an artist withdraws a track from Bandcamp, you will not be able to download it, even if you’ve paid for it.
Moral of the story, once you purchase a track, you should download it ASAP.
In my situation, they deleted it a few weeks after release to keep it limited!! They did however send me a download link when I complained, so it worked out in the end.
Would love to go, unfortunately over 700 miles away. Definitely need to catch him live sometime. Hopefully one of our London based TP’ers can take you up