When I received fonctionnai memory in mobile phone (Wiko) but displayed only 29 GB and do not fonctionnai with the adapter into a camera or a computer (MAC & PC) So I ask the exchange to which the product was made, it took about two weeks, it is a difficult may, after contact AMAZON that you return here with his supplier in England who sent a document to fill for explanations about the problem and to join with the defective product. I HAVE REQUEST THE REIMBURSEMENT OF POSTAGE FOR SENDING IN WARRANTY (EURO 5), WHICH HAS NOT BEEN DONE.