Hello, I posted these questions on the Newbies Board, but got no replies. Perhaps I need the experts over here. I am new to the miles and points game and did a small app-o-rama in late November. I am getting organized to do a bigger one in a week or so, once 91 days have passed. I have been saving snail mail offers from airlines, hotels and banks that have come to our household, some of which have 12 or 16 digit "special invitation numbers." I have a few questions: 1) Am I more likely to get approved if reply to the snail mail offer and I use the special number? Or should I follow a link for the same card, perhaps from a favorite blogger, so they get the credit, if I am as likely to be approved that way? 2) I saw a tweet from a miles and points blogger asking for a code for a particular card. ("Anyone have a code for a 100K AmEx Platinum?" Answer was: "are you 365 days since your last Plat? do you still need the link/code?") When I tweeted her, she said that the codes are not identified with a particular person - so that I could for example apply using a code my husband received. I at first thought she was referring to the 12 or 16 digit special invitation numbers I mention above. But maybe she meant a promo code or URL, not the special invitation number? Are targeted offers which have specific invitation numbers linked to a specific person? Basically, I'd like to use whatever will make it most likely for me to get approved. Thanks!