My recent experiences with Prodege sites (both SwagBucks and MyPoints in my case) is that something has happened in the last couple months and tracking is not as reliable as it used to be. I usually shop through TopCashBack or Retailmenot, but I sometimes use SB or MP when they have a BINGO or SWAGO board to fill in.
Anyway, stores that had been very quick to track (Home Depot primarily) that I had shopped at many, many times, have suddenly just not tracked for my last two purchases. I got credit last month after sending a support ticket, but I’m having the issue again this month and waiting to hear back from support. These are relatively low-value matters; I would be anxious, too, for something like this offer worth a lot more.