Thank you for writing your query in the Udimi Forum.
I believe the seller with the targeted lists will contact you asap.
You can also search the relevant sellers using the search by Keyword feature on the Find Sellers page. You can also filter the search by following the main traffic source, sellers' locations and the performance of the results.
Here is a detailed step-by-step tutorial with a video about buying traffic on Udimi: https://udimi.com/help/buyer/how-to-buy
If you have any questions, please don't hesitate to contact Udimi Live Chat from the Help page.