After trying with costumer support finally I recieved the verification email, I will write down the steps I followed:
1. I have been invited to join to a developer program for my company.
2. I created an apple id account.
3. When I was invited, I tried to sign in with my new apple id.
4. Whenever I tried to sign in, Apple asked me to verify my email.
5. After I pressed serveral times the "Send Verification Email", nothing happened.
6. I opened iTunes from my iMac and I signed in with my new apple id.
7. They asked me to fill some data (including the payment information).
8. After filling the payment information, I returned to the developer program and tried to sign in again.
9. Apple asked one more time for the email verification, I hit again the "Send Email Verification" button.
10. This time, the email verification button worked and a new screen saying that the verification email was sent appeared and then, I could sign in into my account.
That's all, you just to add your personal data in iTunes and then try to verify your email again. Hope this helps someone.
