Activated a Vodafone prepaid sim ($40 pack) from last year's Netfilx deals. At the last stage of activation there is an unavoidable credit card field, have to enter one to save on their system even if you turn off auto recharge.
Did too many people burn through Vodafone prepaid deals or something:)
Still got one more $30 card left, probably will junk it since I already got its value from the Netflix card ($10 for $30 SIM and 20 Netfilx)
Pretty sure Vodafone has required a recharge (voucher or CC) on activation for a while now