Urgent Google Ads CPC Audit

In the past seven days my average cost-per-click on Search Network campaigns geared toward lead generation has suddenly doubled. I have no record of intentional bid, budget, or creative changes during... (Budget: ₹600 - ₹1500 INR, Jobs: Digital Marketing, Google Ads, Google Adwords, Google Analytics, Internet Marketing, PHP, PPC Marketing, Search Engine Marketing)