There's no such thing as a "redownload limit" for our products.
That message is probably automated by Esellerate, since many developers don't use a freely downloadable Trial that can be unlocked with the Serial Number and, instead, they use an hidden download for the full installer, accessible only to those that purchased the products.
We don't have such thing, there's no "full" installer, the one and only installer we have, is the Trial version, which is of course is always freely available to download at any time, without any limitation, and it's not even hosted on Esellerate so, the Esellerate support site doesn't have anything to do with it: you only need to go there to retrieve your Serial Number, not the installer, which is on our website, always available for download at any time.