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Ok. If you go to the passengers side of the car and look at the handle for opening the front door. If you look up at the bottom of the handle, on the small part that doesn't move when you try to open the door you will see a little slot. You have to gently lever the plastic cover off of this part and under this plastic cover you will find a key hole to unlock only the passengers door. As this key lock has never been used since you have had the car it might be a bit stiff to turn and also to push the key in may be a bit stiff so it may be worth using a bit of WD40 or the likes to lubricate the lock up while trying to turn it.
Once you have the passengers door unlocked you can enter the car and open the bonnet to gain access to the battery to charge it. Once the battery is charged you should be able to open the car with the fob and start it.
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