The possibility to purchase layers is currently limited to certain countries and payment methods. Please check if you meet the requirements:

1. Layar Reality Browser installed on your Android or iPhone mobile device
2. Logged in with a verified Layar account
3. Verified PayPal account from one of the following countries: the United States, Canada, United Kingdom or Australia
4. Sufficient balance on your PayPal account or linked to a valid credit card

We will add additional countries in the near future.