Fix Zero-Impression Facebook Ads

My ads are showing as Active in Ads Manager, but the delivery column stays stubbornly at zero: no spend, no reach, no impressions. The campaigns are built for Messages or leads and they point to an instant lead form on Facebook and Instagram, yet nothing moves... (Budget: ₹600 - ₹1500 INR, Jobs: Advertising, Digital Marketing, Facebook Ads, Facebook Marketing, Google Adwords, Internet Marketing, PHP, Social Media Marketing)