The only "surprise" in this top up "hook the duck" is that you usually win a prize that is no prize at all because you get something that is no use to you ie free texts when you already get free texts on the tariff you are on. This whole thing is a scam and they are misleading people. They are letting people believe you can win any prize on hooking a duck but the "prize" has already been decided when they send you a code to input before hooking a duck. I didn't collect my free texts (which I have been given 2 out... read full review »