What's worth in SEO 1st Rank or 1st Page Ranking?

Hey There,

I know I am writing something that actually lots of people have asked or send me queries that what is the guaranty of 1st Ranking?

Now if you research on Google, You will see Top SEO Companies Never Offer Any Monthly Packages nor they Say or sign an agreement that it will take you on the 1st Rank with our SEO within only 6 months.

I know being a client you must say then why should we pay you if you are not giving us any Guaranty how we should trust you?

Now to clear your doubt to let me share google Forum link itself where they commit that if any SEO Company Offers you that they will give you 1st Rank within 3-6 Months only then Run away from them. https://support.google.com/webmasters/answer/35291?hl=en