How to set ads to appear in the top position in network search?

Question

contextual advertising

Good day! I am learning how to set up contextual advertising in Google, the task is to ensure that advertising always comes out in 1 Google position. Website landing service for the repair of household appliances. I set up advertising, but it plays in the upper part at 2, 3 positions at the bottom of Google. Sometimes it doesn't even come out at all!
The daily budget is $15. CPC is $3. Bid strategy - Target impression share.

The advertiser wants to always be in the first place, even ready to pay a lot of money for it, no matter how much I explain to him.
I really hope for your help!