To see or use a cell phone in your dream, indicates that you are being receptive to new information. It also represents your mobility.
To dream that you lost your cell phone, represents a lack of communication. You have lost touch with some aspect of your feelings or your Self. If you find a cell phone, then it symbolizes reconnection and reopened communication.
Please see also Telephone
There will be a currency.
A cell phone or other personal communication device can represent communication—especially personal communication, since it is usually owned and used by only one person. Calling someone can represent an actual recent interaction with that person or a desire to communicate with that person. Calling for help (for example, 911) can represent a desire for support, or a feeling of victimization, and it can sometimes represent a call for spiritual help.