Training: Instruction to develop new skills.
Hello @Mark Armstrong
Thank you for reaching out to Microsoft Q&A. I understand your concern regarding the sandbox previously available on the platform.
At this time the sandboxes are not available for this. I recommend you check out a trial subscription to Azure which will include many free products and services along with a $200.00 credit for you to use.
This link will take to the sign up page.
https://azure.microsoft.com/en-us/pricing/purchase-options/azure-account
If you found this helpful please mark the answer as accepted as this helps others with similar issues find answers and support on Microsoft Q&A
Sincerely,
Andrew Taylor