What is the prompt message you received when your withdrawal request was declined?
If you have limit you should be notified when you try to withdraw, but then looking at what you mentioned, I don't think you have any wagering limit to meet up to before you can withdraw, I think you best have to read through some terms of the bonuses from free bets to know if there are conditions to winning from your $25 free bet that you turned to $100.
Thanks for the feedback! Unfortunately I get absolutely no other error message, the withdrawal attempt is not displayed in my profile either. It is therefore probably a technical error or something similar.
In the meantime, I have opened a support ticket, the support team contacted me immediately and is already looking into the issue. These are top response times!
As you mention its free bet win so don't need to worry about this because in few cases this take time, but soon you will be received all details about your withdrawal from them, and they will be released this as soon as possible.
In most cases there is no need of any wagering or other requirement because you have won through free bet just because of this site done some verification then withdraw will be works without any problem.
@Whale.io doing good job with many competitions are active many members winning free bets and enjoying but still they need to work on few things before giving withdrawal because it's precautious from them just because of this sometime its take time or rejected in first attempt.