I’ve thrown out the packaging the order came in, can I still return it or will I have to buy a new satchel?

Good news! You are still able to return the items, just as long as the items are sealed up properly in a spare shopping bag or plastic bag, with the return number and address clearly labelled on the front of the parcel. Once you have done this, take it to the post office or put it in a post box for return.