This reminded me of
Lucius' post in which he said that he was unable to convert his 100,000 reward points to bitcoin due to not meeting some requirements.
The last time I converted my reward points to bitcoin was months ago. In that time, there were no requirements other than having the minimum of 100,000 reward points. Now it's seems that there are more requirements.
Thanks for pointing that out. I have read the post of 'Lucius' just now. Seems like Freebitco team has also applied the "free winnings to wagered ratio" rules on the reward points exchanging system. Previously, the users were allowed to play without captcha by
keeping at least $100 in BTC in their account. While some other users were allowed to play without captcha for their higher wagering activity. Perhaps, Freebitco team has implemented similar rules on the RP exchange system. This requirement could be for those users only whose 'free winnings to wagered ratio' is high.