Grizshell I gave up on the MR mall after having to chase every single transaction made one christmas! They lost a GREAT customer when they lost me as I average $40,000-$100,000 spend online a year. This all goes through a rebate site now.Not as profitable for me but I always get my check in a timely manner.
PS-as I advised in the thread you linked to, make a screen shot/print out of the opening merchant screen(which has the partner number)and the amount of your final sale.