You've been misinformed, there are previous threads on here about A&P licence and stuff.
Firstly you need a letter from and airline that says you will or have been working on N registered a/c. You then need to take this letter with a letter of proof of experience from the CAA or similar organisation to the FAA. All of this you have to pay for. You will have a chat with the FAA who will either say yes or no that they consider you acceptable to hold an A & P. Then you can go and sit the FAA exams, or attend the ACME school of A & P things.
After you have then obtained an A & P, put it in a drawer somewhere, as it has no bearing at all towards an EASA B2 licence, you then have to take the 12 or so module exams to gain a B2.