Purchase MarketPress and Mobile Theme

I tried to purchase the Marketpress and get the mobile responsive theme just as Arun Basil Lal suggested. However, each time I tried to do it, your website takes me to a memberhsip page where I have to pay 419.00. I have basic membership when I purchased ultimate branding. At this time, I can only afford the marketpress which is only $19 as advertised with the associated mobile theme to make it mobile (my interest is only mobile). How can I purchase these items immediately.