My son, father of 5, is divorced. He doesn't have the kids very much. Ex is a nightmare. They live a long way from us. Getting Christmas/birthday gifts to them is incredibly difficult for various reasons, so I send him money via online banking for gifts and for celebratory food etc. The kids are old enough to enjoy having spending/saving money. However, this Christmas, despite my giving him a very generous sum for kids' spends and Christmas food, too, he didn't give it to them. Turns out, from DGD1 that he hasn't in the past, either. Child support is crippling, I know, and I've been so generous in the past to give them holidays, generous gifts, paid bills, send food parcels etc. but I feel so let down and betrayed. The kids don't know that Granny has been giving them money for spends or saving. They have never been encouraged to write thank-you notes by their parents. AIBU?