Rejected, paused or expired campaigns

• Rejected — read the reason in Ads Manager. Fix the issue and start a new campaign, or contact support about the payment.
• Paused — Niteshif stopped it; contact support to ask why.
• Expired / Completed — the dates have passed. Start a new campaign to run again.

You can't cancel or change a paid campaign yourself. Contact support and include the campaign's headline or date.