Vanity Fair- what's the problem?

I subscribed to Vanity Fair throught iTunes but still I couldn't sign in. For days, I've been trying to request for my subscription account number with which to access Vanity Fair online but to no avail. I wrote both Vanity Fair but I got no useful reply. Itunes has already acknowledged receipt of my payment and yet, I still couldn't access Vanity Fair. I'm giving them another week to act on my concern. If I couldn't yet access my subscription despite having paid, I will boycott Vanity Fair for the rest of my life.