During this visit to Portugal abd Spain, I have bought at three difference cities. The first was at Salamanca, where I was told that there was no tax refund system. The next was Lisboa, where I bought quite a lot and was told that tax refund was applicable, but subject to presentation of original or copy of the passport. From the response of your store in Salamanca, I did not carry my passport, but I told your staff that I had the passport number; your staff said the original was needed abd just a number would not work, so I could not apply for rembursement. Lastly, when I bought some at your Porto store, the kind lady said that as long as I had the passport number, there would be no problem in applying for refund. The advice by your staff in Salamanca was not precise enough and the way I was treated by your staff in Lisboa was inappropriate in my opinion. Why does the your store in Lisboa do differently in this sort of very important matter? Is there anyway to fux this problem?