You can shop and pay safely with the following cards: Visa, Visa Electron, Mastercard, American Express
For some of these reasons may be rejected your card:
– The card may have expired. Check that your card does not exceed the validity date.
– You have exceeded the allowed amount of the card.
– In both cases, check with your bank.
It is good to check if you have filled all the required fields correctly.
It is mandatory to request the invoice of your purchase, you must check the option of «enterprise» in personal and fiscal data cover all we ask for, the purchase price is added the value added tax (VAT), except those bound for the Canary Islands, Ceuta and Melilla, that will come free of VAT.
No, it is not possible as the Tax Free only applies to products bought in store and are transported by oneself.