Never heard of either seller (and the mods will probably remove their names shortly). If they have already posted the items, there is nothing you can do about it apart from going to your old address and asking the people there to keep an eye out for your parcels. Even if they are not posted, a seller can't send to a different address from the one they are given by PayPal.

When did you message them? Not everyone sits glued to a screen 24/7, so it could be a day or few before they get your message.