After purchasing my playbook a few weeks ago I have decided to purchase a few books from kobo books app on the playbook. However when you are asked for your details after entering every little detail correctly it states at the top of the page "something is not quite right with your information. Please double check your details below" with "Country is required" below. The country is correctly set to U.S.A but what ever I do it will not allow me to purchase a book. Can anyone help me out?