My first time in here. Great forum. Thank you for hints on my problem:
I've been running a few campaigns on GDN for nearly a year now (via MCC). In April this year the placement report for each specific ad group started to show multiple listings of some domains, like this:
Domain Clicks Impressions
about.com 1 1
alexa.com 5 50
anonymous.google 8 2079
anonymous.google 7 284
apple-juice.org 1 7
bitcomet.com 2 71
bitcomet.com 1 1
bitspirit.cc 1 3
bittorrent.com 4 1734
bittorrent.com 2 31
blogspot.com 1 125
blogspot.com 0 457
I asked Google's support in April for help but havn't got an answer yet. Perhaps someone in here could give me some sort of advice of what went wrong/to do. TIA.