Did you ever have preview release 10240 (the last preview release) activated ??
If so just clean install 10240, but do not enter any product key when asked, just Skip...
I just tested (out of curiosity) and sucessfully activated preview build 10130. I had to change product key to 6P99N-YF42M-TPGBG-9VMJP-YKHCF though.
E-Pid confirms installation date (day 227 of 2015)
@Kyhi and @Superfly
Thanks for taking the time to answer. Quite honestly since it's Saturday night, I've had a few Hose's. You may know our friend Hose.
I'll make sure I look at this in the a.m. In the mean time I'm getting another call back from MS in about a half hour to see once again what they can do on their end.