I've tried doing this and it never seems to work. I joined Essentials, Galleria and one of the others, as well as Connections. I kept the connections membership and after going through the whole postcard bit it still took 3 mos. to receive the other form. The Connections offer was for dinner and a movie. Guess what they sent me - two tickets to Loews for a movie (which can only be used on movies that have been out for more than 10 days) and ANOTHER form to fill out and send in for a $20.00 dinner rebate. If you find dinner in NJ for under $20.00 for two people, let me know. BTW, the form had an expiration date on it of April 2002 and I only received it a couple of weeks ago.
I haven't received the KMart card from Galleria or Essentials. When I called to cancel the guy tried to get me to stay by saying that I would receive it. It's blackmail. There are so many steps to getting this garbage that they hope people will give up and go away.
First it's the postcard, then it's the member survey, then they send you something that has to be redeemed - you never get something for nothing. The company which owns all of these services has many complaints lodged against them with the BBB.
Caveat emptor.