I see that I can buy bonus spin on WOF by my RP, so I bought 1 bonus spin on WOF for every free roll, but when I go to spin the wheel, I see that the client seed section is FROZEN and I can't change it.
Then I refresh the page to see if the client seed is change and the system not allowed me to spin the wheel and erase my bonus for this roll.
SO WTF?!
I followed your way to change the client seed you mentioned on the freebitco.in thread just a few minutes ago.
I was able to change the client seed successfully so I think it must be a technical error for the time being.
May be you can try again for a new spin tomorrow and it would work this time

Also, you could have just posted this on the freebitco.in thread itself rather than creating a new thread.