As far as I can tell, they only allow customers to make purchases if ther IP address is within the allowed range, i.e. a known UK or US IP.
There are a few ways you can try getting around the restriction:
[li]If you know of a close friend or relative in the UK or US, see if you can get them to purchase the songs for you. All they need to do then is put them to a CD and mail it to you. This is only worth it for a large number of songs, especially if you can only pay by cashier’s check.[/li][li]A high anonymous UK or US based proxy service would probably also get around the restriction, as your IP will appear that of the proxy server (within the UK/US) instead of your ISP’s IP. The catch here is that most free proxy services are very slow or may not support secure connections, which is required when you go through the checkout process. Also, I’m not sure if Amazon would accept a non US/UK creditcard when purchasing MP3s, even if you appear to be from the US or UK.[/li][/ol]