Cristina What country are you residing in? Which country's address have you registered with at bunq? Depending on that, your account will automatically get sub-accounts with IBANs that belong to that certain country. So for example, if you register with a Spanish address, then you get ES IBANs. If you register with a Dutch address, then you get NL IBANs by default.
If you want an IBAN from another country other than your account's default, you can use the Local IBAN feature to get one: https://together.bunq.com/d/45253 If you're having any trouble with that, feel free to ask here. Please however describe in detail exactly what you're trying to do.
He introducido un teléfono español.
Only your country of residence is important, not your phone number.