Ok, so there were 2 replies, so I wrote 1 and 2 on different cards, and I randomly selected any card 14 times. Result:
1,1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2
Times number 1 was picked: 6
Times number 2 was picked: 8
So since B41 was the second one to reply, and the number two was selected more times, B41 wins and will receive the voucher. If I get any more vouchers I will continue to give them away. B41 your voucher code is on your PM