I think some are fly for it and when their total hits a certain amount they take it out. 1 lass told me she thought if you went over £50 it was likely to happen. I used to see a regular, sadly long retired, and she got done for £90 and then some time later £75 and they didn't tell her they took her page down. She only found out when she checked herself as she was getting no calls, both times they let her put her original page back up but when she asked about the money it was a case of We Know Nothing!