Thanks very much for sharing that case number with me, @chaper44 - that was most helpful!
I can see that our teams had been tracking this issue, but it had looked like the problem was resolved, so it's most unfortunate you've not been able to collect the key.
Can you be sure to double-check that you've got the console and all software fully updated, and that you give the console a power-cycle? You'll find some instructions on how to perform these steps in our troubleshooting guide.
If it still doesn't work, can you make sure your latest save is uploaded to the cloud for me? Our support article about cross-progression explains how to do that. If you could let me know once that's done, I'd really appreciate that!
Thanks once more for your help, and sorry for the inconvenience.