Buenas tardes: Me gustaria tener es

Buenas tardes:
Me gustaria tener este modelo de terminal con 3G como me pusieron en la oferta.
¿Me lo podrian cambiar?, si esto no es posible que pasos tengo que hacer para devolver el terminal y recibir el dinero que le he pagado por el terminal

結果 (英文) 1:

Good afternoon:
. I would like to have this model with 3G terminal as I put in the offer
Can I have ?, could change if this is not possible you have to do steps to return the terminal and receive the money I paid for the Terminal

結果 (英文) 2:

Good afternoon:
I would like to have this model of 3G terminal and put me in the offer.
I could change? If this is not possible, steps have to do to return the terminal and receive the money that I have paid for the terminal

結果 (英文) 3:

Good afternoon:
I would like to have this terminal model with 3G as they put me in the offer.
i have could change', if this is not possible that steps i need to do to return the terminal and receive the money that I paid for the terminal