I'd probably have checked after the first time I didn't hear back. I find their lack of response very rude. You say "small" God children so I'm assuming they are too young to acknowledge on their own, but at the very least their parents should put them on the phone to say thank you. Not sure what you can do now after five years. In future I'd be inclined to send just a card, as I'm not sure f you can say anything now. I personally find that lack of a thank you inconsiderate although from what I hear it's not all that unusual. My own reaction would have been to check after the first lack of acknowledgement.
Our seas and beaches and climate change
AIBU to say that husband was irresponsible?
Please hold my dear GD in your heart for a few days.
