Update: They unflagged my account and apologised.

• A few years ago, they asked me to review a paper – which I did and which they were happy with. They were trying something new at the time – publishing papers – and I was one of the people who they picked to review a recent submission.
• They’ve kept telling me that they are recommending my papers and books.
• I haven’t purchased any of their products just to see which papers they are recommending my work with, however.
• So I just found my account blocked when I tried to log in. They say I’ve been flagged as a spammer.

This was their most recent email.