There is no 'story'.  If you want to give then please do, if not then no worries.  I rarely give to charities when asked because I prefer to choose who I give to, so I won't hold it against anyone who doesn't want to give to my choice.  The official spiel is below

 

"Thanks for taking the time to visit my JustGiving page.

Donating through JustGiving is simple, fast and totally secure. Your details are safe with JustGiving – they’ll never sell them on or send unwanted emails. Once you donate, they’ll send your money directly to the charity and make sure Gift Aid is reclaimed on every eligible donation by a UK taxpayer. So it’s the most efficient way to donate - I raise more, whilst saving time and cutting costs for the charity.

So please dig deep and donate now."