As the representative of Money Removal PLC, he needs to transfer your money from your current vault whilst it's being steam cleaned, otherwise it'll get wet.

Or maybe the entire bank vault is being redecorated and refurbished with a Christmas theme? The interior decorators of Bank Festive Redistribution PLC need to get access to your account number and sort code so they can festivise your vault with some tinsel and a tree, and George can facilitate this.

George is also responsible for many international competitions which you have won, that accumulates all the 1ps and 2ps people forget about into a monies pot worth over £80! Just let him know your details and he'll wire over your winnings immediately!