It's been a while since I was involved in the Golden Bond scheme so forgive me if this doesn't answer your problem, but could you look at other cancer charities as an alternative/back-up, e.g. Macmillan?
Incidentally I was lucky enough to get in via the ballot first time (2007) and ended up raising money for Cancer Research anyway, which is just as well because they rejected my original GB application, even though I pledged to raise £3,000. As it was I raised well over £3,000 - if it's a charity which means something to you and people see what you're doing to raise funds (i.e. running a bloody marathon) you might be surprised how much you can raise. 