I saw somewhere that they are sending the emails out slowly (obviously) I don't think there is anything to be worried about if you signed uP on a later day and haven't gotten it yet. I think some of the days are overlapping, but I know 6/7 haven't gotten any Prewelcome emails yet. I don't like how vague it is. I need a date to look forward to and then I won't be so antsy!