What kind of bot did you using?
He said that he used dinabot service.
I use dinabot service (the sistem work by tipping as far as I know) for cheap fee.
I've never heard of it but it seems that there's a history that there really were users using it. I haven't gambled in stake nor in PD for a long time so I'm not that familiar with the bot service he used.
Maybe it has something to do with the bot.