Luggage transfer is included in your package when is not offered as optional service. This service is normally provided by the accommodation itself or a taxi supplier.
Bags should be usually ready and at the reception or store room by 09:00 hrs and will be delivered by 16:00 hrs.
If you are unable to walk or ride, you can always ask the luggage transporter if they can take you when transporting your luggage, but this is not always possible and sometimes you have to pay a small fee locally. In some countries there are special insurances for transporting peoples and sometimes the vehicle is not suited for transporting persons.
When you travel with public transport you always take your luggage with you.