[There's some problem with the billing system?]

tried with both credit card and pay pal, but both failed.

 

Thanks for the quick answer. The message I'm getting is this 

There was a problem charging your payment method.

 

What makes no sense at all is that I bough lindens have 2 weeks and it worked pretty fine, the credit card is totally in it's limits, is international, in fact that the first time ever something like that happens.