Source: The New York Times - Link
But what the Blatts believed was duplicity was actually an intentional scheme to boost revenues by the Trump campaign and the for-profit company that processed its online donations, WinRed. Facing a cash crunch and getting badly outspent by the Democrats, the campaign had begun last September to set up recurring donations by default for online donors, for every week until the election.
Trump’s own supporters are conned out of their money by his schemes.