I would certainly expect to look for three dots in the top right hand corner when the contact is open.
Are you storing contacts on the device itself, or are they sync'd with Google? The latter option is better as it keeps them backed up and, afaik, doesn't affect storage in the same way.
Also, have you considered adding an sd card to the device? You can use that to store content such as photos and music and free up space. Some Vodafone devices will also adopt it as part of the main storage pool and manage it for themselves.
