It's fair because the user agreed to those terms of service upon registration, and their deposit was returned so they didn't actually lose any money. It's an open market and the player has the choice to use other sportsbooks in the future. If players feel treated unfairly by Sportsbet then surely they will switch to their competitors, resulting in the loss of business for Sportsbet. In this instance - as many of the sudden influx of others as of late - no wrongdoing was done by Sportsbet, and the free market will sort it out.
It is not fair since I did not violate any ToS and they do not even provide evidence to proof these accusations, not even a single specification. The whole you get are several automated emails, only.
As far as I am concerned, they would allow me to lose as much money as I would be willing to deposit, but by the time of withdrawing some profits, then problems start, right? Where do you see the fairness here? I do not see any.
They are in their absolute right to shut my account when they have a "suspicion" of a breach on their ToS, I agree on that.
However, the whole balance from the account should be returned to me since it was won legitimately, and having a "suspicion" does not mean that something wrong is actually happening.
I did not do anything, and no evidence is given to proof otherwise.
Returning the balance (whole) as it was when it was frozen, is the most fair thing I can think of.
And even more when I only had these tiny profits. We are not talking of several BTC on profits, we are talking about 0.021btc, which is ridiculous.