Hey, recently i got in touch with a SEO company. They offered me 15 keywords for about 300 Euro a month in .com .fr .co.uk .de so 60 keywords in total. guaranteed 50% of kewords in top 10 in 3 months. They wanted twice as much for Top5 in 6 months My question, is it worth to pay this much for such service? Does top10 is even worth?