I've been in the UK 10 years, my family are all back in Oz.
For my birthday - I'm lucky to get a phone call from between them and even then it is only if my Mum nags them. I used to send them gifts but stopped and now will only send a card or call. For my brothers 21st I gave him AU$1k and the cheeky fucker had a bet on with his friend how much I would give him as I made a special trip back for it
For Christmas - used to send them gifts but don't normally bother anymore as the only time they ever bought me anything was the one year I was home.
For DH wedding - we had in Perth so they didn't have to travel because I knew they wouldn't they came and neither gave us a gift. Younger brothers GF was a student so poor at the time but both of them work in reasonably paying jobs. It was also my 30th birthday a week before and I was home. They didn't even get me a card.
For the birth of their niece, my first DD - younger brother's GF got me a me a lovely gift from both of them which my mother brought with her too tight for postage but my older brother did not phone or text or anything for weeks. It was only when my Mum got home and bollocked him did he give her some money to go buy a card and clothes for my DD, that she then had to send it for him.
Christmas now - I sent them all small gifts, younger brother, his GF and older brother from my DD, expecting that they might send her something small since it is her first Christmas and would feel bad if we didn't get them something in return. Of course they didn't send anything and speaking to younger brother they didn't even say thank you for the gifts. I should add they have met my DD as we flew back to introduce her to both sets of families in Australia at considerable expense Neither brother has visited me in the UK.
Sorry this is long but I just feel very hurt by them and am worried that they will never make an effort for their niece. So AIBU to expect them to perhaps be less crap when it comes to presents / effort to get in touch for my DD?