DH is out at a hobby. While he is out I decided to put on a wash. I routinely empty DH trouser pockets before washing as they always have train tickets, receipts etc. In amongst everything was one for a £300 gift card for a large shopping complex. We don’t ever shop in this place as it is a distance away. I didn’t receive this gift card. Neither did his DS or DM as we spent Christmas together. This is a sizeable amount of money for us. I don’t know what to think.