It looks like your problem has been answered by a wintomato representative.
You have been detected creating multiple accounts on this platform to abuse bonuses or cheat bonuses with multiple accounts having the same IP.
Even though you didn't provide any evidence at least your question has now been answered, are you relieved?
Cheating in any casino is prohibited and it is not recommended to continue to do this for profit.
Lately, there have been several cases like this where gamblers take advantage of bonuses provided by casinos by creating more accounts for the purpose of being able to collect or get even more bonuses.
Every casino must take firm action against cases like this because it is not only detrimental to the casino but also to the detriment of other gamblers who have to work hard to get bonuses from the casino.
I don't know why they did something like that, even though playing in the right game can provide more benefits than wasting time cheating the casino by only expecting a bonus.
That is just the way scammers operate, we know that clearing the wager requirements of a bonus is not easy and when we do we feel a small sense of achievement, but scammers instead see nothing more but a window of opportunity, they think that if they can create enough accounts then chances are that some of them will clear the waging requirements and this could allow them to be profitable.
However this is a losing battle as casinos are getting better at detecting multiple accounts and all their efforts will be in vain.