"focuses on nature and phases of the moon. Wiccan’s honour the Goddess and the horned God. Wiccan’s believe that both are in balance (think yin and yang). We also believe that the Goddess and horned God are associated with the moon waxing."
OK, religions are not known for the rationality of the stuff their followers believe in, but still... 
"What do Wiccan’s believe happen’s after death?"
I hope they go to school. Wiccans. Happens.
"Wiccan’s have one major rule. Wiccan’s believe that whatever energy the person puts in to the world, be it positive or negative, it comes back three times as much."
Why exactly 3 times? Why not 2.8 times or 5.2 times?
And where would you say all that extra energy comes from? I realise that it's unreasonable to expect people who can't spell the word "happens" to have basic notions of physics, but I do wonder if Wiccans have heard of something called the First Law Of Thermodynamics.
"In the Uk their are around 20,00o to 30,000 people that practice Wicca"
UK. There. People who practice.
This was fun. Let's do it again sometime 