Am I wrong

So Im 21 have two kids and I’m struggling and I get foodstamps and I do use them and my mom also gets some she’s 45 and has 3 kids not including me she gets more foodstamps tho but she sells them to her friend. So every $100 her friend spends she gives her $50 in cash.. and she sells them all she doesn’t use any at all for groceries she just buys her groceries with money idk why it makes no sense lol. But anyways she asks me for foodstamps sometimes and I tell her I don’t have any. My mom has helped me a lot but she has done some wrong stuff but no one is perfect. And I lived with my gma for 16 years and with my mom until I was 18. I kinda feel bad for not giving her any am I wrong for that?..