For an identification surcharge of CHF 5.00 you as a private individual can issue an effective order with the “Express forwarding order” online service. Express orders that have order starts within the next three working days and orders for companies cannot be accepted via this channel.
Issuing an order by phone
As a Swiss Post private customer, you can also issue the forwarding order over the phone by calling the service number 0848 33 22 11. When issuing the order, you will need a credit card or a PostFinance Card.
Issuing an order at your post office.
Your local post office will also be happy to accept your forwarding order. Please bring valid proof of identity with you.
There's a number there. Give it a call and they'll be sure to answer your questions.