The eCPM amount is just the estimated cost per 1,000 impressions based on what you paid for your ad for 30 days. This amount will decrease as your ad receives more impressions over the course of your ad cycle, but it is not an amount that you pay.
We tend to answer most support tickets during normal business hours: Monday to Friday, 9:00 am to 6:00 pm (EST). However, we're constantly monitoring tickets, and we'll address urgent issues on nights and weekends, too.
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