Excluding seller from a saved search

I've had a few long-standing saved searches which have recently become swamped by mass selling items from one seller. I've tried using the 'exclude' seller option towards bottom of advanced search but it makes no difference to the results. I still get hundreds of posts from that seller, offering just variations of the same item.
Am I doing something wrong in the advanced search if I still keep getting items from a sellers I've attempted to exclude?
Thanks

Message 1 of 1
See Most Recent
0 REPLIES 0