Of course I disagree with the word "scam" here because that implies a net monetary loss, which didn't happen no matter how you frame it.
You are very wrong on that nutildah.
The player takes a risk in placing the bet. From the moment the bet is won the money is his. So if he gets anything less returned than his deposits + his winnings it is indeed a loss.
Not if he was never eligible to receive it in the first place. In that case the net winnings are zero. I already said it would be more ideal if the system flushed out multi-accounters before they placed their bets, but nobody does that.
It's like if you go to work for 10 days and then you don't get paid, because fuck you. Would you also say that's not a scam because technically you just worked and didn't lose any money? Your reasoning makes exactly 0 sense.
This is an overly-simplified analogy that leaves out the nuances of both real and hypothetical situations.
We're just beating a dead horse here. There's nothing more to be said. What it comes down to is either taking the side of Sportsbet or the side of OP in choosing who you want to believe. Maybe Sportsbet will provide more input into the matter but I wouldn't hold my breath.
Until then I'm going to excuse myself from this conversation because its now quite boring but feel free to continue on if you must.