Hi, sorry to hear your having trouble.
When did you order from us? Do you know your order numbre? Do you know if you have the latest RaspberryPi3 with on-board Wifi? If you do one side-plate on the emonPi enclosure will be black acrylic plastic.
If you ordered some time ago and have an older RaspberryPi 2 you will need an external Wifi USB adapter.
If you have SSH access you can find out what RasPi you have by running:
$ grep 'Revision' /proc/cpuinfo | sed 's/.*: //'
If this returns a02082
then you have the latest RasPi3 with on board wifi. If it returns a01041
then you the older RaPi2 without on-board wifi. See here for more info on hardware identification: