I drove out some traffic of about 5k rubles for tests, everything was fine.

Until I found a profitable funnel.

At first they started rejecting creatives that they used to let through just fine, then they blocked the account that still had money on it.

Most likely one of the moderators is casting this funnel and decided to get rid of a competitor.

Owners, keep an eye on your moderators and their tricks. On May 4 this moderator worked.