Even though I was able to buy same apps, saying that the last one was bought about 3 weeks before, now whenever I try to buy a new one it says that there is problem with my payment details. To be more specific when I created my live account and that was around 2003 I had linked my corporate account to live. Even though I live in Europe my account had regional settings set to US. My mistake I know. That has been real pain for me ever since cause I cannot buy any apps with that account for my windows phone !!!. When I bought surface though Microsoft introduced PayPal as an option so with that account and settings on surface set to Greece where I live, I was able to buy apps. But not anymore.