So I’ve seen this happen too many times now. Initially thought it was an oversight but I can now count at least 5 times it’s happened. Sister in law buys one of our children a birthday gift, if for any reason it’s unsuitable, she agrees to take it back for an alternative but the goods never arrive. She bought my son a game at Christmas, he already had it. She agreed to take him to shop to get an alternative, it never happened. She’s recently bought my daughter a jacket for her birthday. It was too small. My daughter was very polite and honest and said it wasn’t really her style. (She’s 14). She agreed to return it for a gift card. It’s now disappeared. We’ve seen her multiple times the past month and no mention of it. Just for info, she lives alone, very low mortgage and is financially secure.