Once you have received the document, you should follow next steps to get this important discount:
Keep it saved until you go back to your country. Remember that the validity period to stamp the document shouldn´t exceed 3 months from the moment of purchase.
Stamp the document in Customs before checking in your luggage, showing the Passport, the bill and all those products if this is necessary.
Cash your tax free documents by cash or refund into your credit card account at the cash refund desk at major airports and inland border check points. In this link we attach, you can find those places where you can receive the refund of VAT. Places for VAT Refund
On the other hand, you can refund the money by credit card. For this, you should post the document to Innova Tax Free through the freepost envelop provided at the shop.