When I try to download any app I get the following error
Please check that your billing address and payment method are from a supported country
even though billing address and visa card are both Spanish.
What do I do now, should I just send it back to Amazon?
Not enough information. Where are you physically located (country)? On which Amazon site is the Fire Tablet registered? From which Amazon site are you attempting to obtain the app? Your billing address and credit card are both in Spain?
Physically located in Spain, the tablet has just been powered on (straight out of the box brand new). Signed onto to amazon as prompted and then used the "For You" recommendations page to the left of the home page which gives access to Appstore. Also tried going directly from the home page using Appstore app and still the same error.
So long story, short. In Spain, spanish address, spanish card
How do I know where it is registered to? It was bought on amazon.es. Surely this should work out of the box? I am posting this from a laptop after searching online for an appropriate amazon forum. I didn't find a spanish equivalent!