I first was told it was no longer an option and I challenged this as I said it was still on the MS learning website.

I got this reply.....

"Dear Gary,
We apologize for the inconvenience. I double checked the information in both sources and this is to confirm that completing the MCSA in Win 8 combined with the 697 exam together gives the MSCA certificate in Windows 10.
Once again, apologies for the misunderstanding. "

I guess this will still be a the case until the MCSA Windows 8 is retired in Dec 2016.

This is good news for me as I thought I had wasted a Transcender product and several books I had bought... then soon after they said they'd retire it at end of 2015.