关于SAI申请的几个细节，请教高人

SAI上下的PDF上面在申请材料这一块里写到

The application fees of the application form, duly completed and signed together with the
enrollment fees of ?75, in order to take the selection tests. Please attach the transfer voucher in the case of
a bank transfer

这个enorllment fees 怎么sign法啊？

还有，175euro去要是信用卡转账往那边汇啊？SAI也不给个汇款转账的地址