Recent Sweepstakes and Touch of Modern

For the Lollapalooza Sweepstakes, The Verge is partnering with several orgs. One is Touch of Modern. I noticed after signing up that I started receiving email from them, figuring that The Verge just signed up entrants, which is not too big a deal.

But I've been getting spammed by Touch of Modern, and clicking the "unsubscribe" link in the emails doesn't work. This is really frustrating. Anyone else having this issue?