Hi, thanks a lot for your answer.
And I really do not sell anything. A short explanation, how does it work.
It is called affiliate online marketing:
https://en.wikipedia.org/wiki/Affiliate_marketing
For example: a review website where I will compare top 10 hiking boots in 2017(or anything else). To every item I will add links to Amazon. And then, if somebody clicks on that link, he is redirected to Amazon website, where he can buy those hiking boots. If he will do it, I earn a commission from Amazon, for example 5% of the price of boots. So I am not a seller, I am only the owner on my review website.
So, more visitors on my website = more potencial customers for Amazon = more commission earned for me. That's why I would like to pay for Google Adwords advertisment, but Google is Irish company, and therefore I have to pay VAT as I said