When I log in to the MSC's web page, it always goes to the "Home" page. It is there that I can see any new information pertinent to my account. Information is displayed referring to "Outstanding Holds, Shops Due, and Bundles Offered".
It is there that I found I had numerous bundles offered. I clicked on them and found them to be the same shops I have done previously. I noted the incentives given on some bundles and their lack on others. I accepted some and countered on others with the incentive I would like to receive.
Some were approved and, I am assuming, that others shall be offered to other shoppers. In the past, I've shaved off some shops as I had done them only because of the very significant incentives offered. Otherwise, with the distance needed to be traveled, I never would have done them.
The best part about doing these is that they give the shopper a 6 week window to perform the shop, no specific dates required.