Your solution does not work.  I had already seen this solution in earlier posts but it does not work.  These are marketing messages that are a total nuisance.  There is a checkbox in the message that says, "Do not show again" (or something to that extent) but that does not work either.  The message keeps repeating for a week or so and then goes away till you decide to push another product or added service.  Great product.  Horrible customer interaction/support.