@cds, if you choose to pay via credit card, we’ll charge it when campaign reaches its goal. If goal is not reached, your card won’t be charged. Payments in bitcoins are charged as soon as transaction is confirmed.
As for the tax, gifts can only be sent between individuals. Even if we could send it as a gift, you would still have to pay VAT and customs duty, since you need to pay VAT for any gift worth more than £39 and customs duty if it’s worth more than £135.