You can do this by visiting myHermes and you just need to log in or create a myHermes account. To arrange a courier collection, simply follow the instructions provided. Please note: your parcel should weigh no more than 15kg and you need to have access to a printer to use this service.
Hermes can collect your parcel from your home address on a pre-arranged day for £3.95, this will require a printer to print off a collection label.
Alternatively, you can arrange to take your parcel to your nearest myHermes ParcelShop or Locker Drop off for £3.65, again this will require a printer although some ParcelShops can do this for you. You can find more information on this or find your local Parceshop on the myHermes website.