Should I give my ungrateful relations Christmas presents next year?

Every week a Guardian Money reader submits a question, and it's up to you to help him or her out – a selection of the best answers will appear in next Saturday's paper. This week's question Each Christmas I give my nephews a bundle of cash, and each year I get no thanks. Am I being unrealistic in expecting a note – an email or text would suffice. Do I nudge the parents, or forget it? I'm inclined to strike them off next year's list. What would you do?