Unable to subscribe to Meural Membership

Hi there.  I'm truly stumped here.  I spent about 30 minutes trying to sign up for the Mueral Membership.  (Note that i'm trying this in Canada.)  The website discusses the features of the membership and the cost but there is no link to actually complete the purchase!!?  I finally managed to find a link by googling (not through the website) where you can sign up for the annual or monthly membership but when when i clicked on either option the website gives an error message.  I've never ever experienced this where a company's website makes it almost impossible for your to give them money.

Any suggestions on how to actually subscribe?  (I can't believe i have to ask this.)

Thanks