Registered with a negative poker sites database? but how?

A strange thing happened today, I was logging onto 7 Sultans poker site (which is another primapoker skin) and I get a message saying my account is locked. Anyway to cut the story short apparently I have been registered with a 'negative sites database', the support guy was completely unable to tell me by what site or what the problem had been and just kept insisting that I must've had trouble with some other poker site for this to happen. The problem is that this is the first time I've ever had an account locked in my life, so I'm a little confused... the tech guy says until I sort out the problem with the other site (which he doesn't know) my account will stay locked.

Anyone ever had this problem happen to them or have some idea how this could've happened?

maybe another site gave u a bad negative commnt to the site??

The sites have started doing something similar to the infamous Griffin book. For instance players who are just out to abuse bonuses or have multiple accounts at the same site get their info stored in a database. Anyways it is something some of them have started doing although I haven't been able to get any of them to actually tell me the name of the service.