Revive Google Ads For Leads

I run IMC Automotive, a mechanic garage in Dublin. Over the past month I have poured roughly €1 000 into Google Ads and basic management, yet not a single lead has come through. For the next seven days I want to give the channel one last chance—focused entirely on generating phone-call enquiries... (Budget: €30 - €250 EUR, Jobs: Advertising, Google Ads, Google Adwords, Google Analytics, Internet Marketing, Keyword Research, Lead Generation, Sales)