If you're passing Montellano contact Aromis Polanco, Calle Principal, Frente al Play de Beisbol, Monte Llano, Puerto Plata Tel. 809-574-0242 / 809-269-8149. He has organised for Metro Pac to transport stuff free to SD.
In Puerto Plata, drop off at Edificio del Circuito Musa which houses Radio Puerto Plata, TV Plata and Channel10 - it's what is referred to as the Cable TV company. Opposite Banreservas.