She isn't getting anything back, because her sister is getting it. Pam paid in, but her sister didn't, and ironically, they call this "earned" income credit, when they end up not even paying anything in taxes. What a scam.
EIC is the biggest form of income redistribution we've got going, and it's a bigger form of welfare than food stamps and "public assistance" is.
EIC is now at the tune of up to $5k. The more kids you squeeze out, the more you get (up to 3 kids, but I am sure that will change under this administration). It pays to be unsuccessful in this country. I had no idea until just a week ago or so how much people got rewarded for making poor choices.
Incidentally, EIC has proliferated under many Republicans as well (including Reagan), and it was a Nixon idea.