I agree that it's only been a week... but something similar happened to me:
My dad's brother has 3 children. My dad has sent them $200 each for graduation from high school, and gave one of them a computer as well.
My dad has 3 children, 2 of which are my half siblings and they are about 10 years older than me. I am the same age as my oldest cousin. For my graduation from high school I got... NOTHING.
No card, no phone call, no check, no pat on the back, NADA, NOTHING.
My oldest cousin graduated from college the same year I did and sent out an announcement along with a letter about what had been going on in his life. My dad sent him a nice "congrats" card and no $$ since my uncle hadn't even congratulated me on 1) my graduation from high school 2) my graduation from college and 3) still hasn't said a word about my graduating with my MASTERS.
I do hold some resentment but there's no use in bringing it up- it's water under the bridge in his presence, and I don't let it get in the way of our relationship, I just don't have as much respect for him as I once did.
I might add that he's in a much worse financial situation than my parents, but still people- a card costs about $2 and a stamp is 39 cents. You have no excuse.
So in the end- yes I'd be upset if it never came, but give her more time than a week to do something about it. Heck, I'm lucky if I get out cards to people within a month of the event happening!
