Sorry didn't spot this earlier. If you login to your account and view the bucket the URL will be along the lines of:
https://cgs.construct.net/974b678b-4317-4d4e-b94f-1c90607d70a5/cloudsave/buckets/ea7ee705-e462-4748-9881-20bc24104e37
The bucket Id is the last part: ea7ee705-e462-4748-9881-20bc24104e37
I'll update the interface to make this clearer.
Ahh, I see - appreciate the guidance. I think it would be great to mention this in the manual too.