So I am in a predicament please read

I’m posting this anonymously because we have a lot of people who like to bash on here. I received a text saying to give $10 (they’ll split it 5/5) for my 2 managers. The one manager is brand new so I have no idea who she is really. Just said hi to her twice. The other one I basically hate. I’ll say it like that lol. Because I do. The old one lied when I tried to transfer to another department so I would have to wait for a longer time in the unit. She changes people’s schedules without them knowing and even just recently changed mine even though it’s been like that for this entire month so far. I am part time. So I am hardly there as it is. I am okay with that. I got paid last Friday. A week ago pretty much. My money is used to pay bills and to save because we need a new car desperately. They have no idea what I’m going through outside of work. The old manager also likes to lie and say she never got people’s requests off for work- told another coworker of mine she shouldn’t take her bereavement (mourning time) on a Friday-Sunday because it’s her weekend to work. Sorry. You can’t plan when a family member dies. That pissed me off. I was on light duty because I injured my back and she tried going against my doctors orders and getting me to do things. So I got her in trouble by my doctor and she lied saying she never did anything. Which he expected and warned me she’d do anyways. So obviously this manager is a bitch. Hate her. She’s done more. My friend told me that I shouldn’t feel obligated to give the money even though I know the type of people I work with. They’ll come up to me asking why I haven’t given the money. They have a secret Santa thing and I didn’t sign up. Why? Because I don’t give money or things to coworkers who I hardly know and dislike more than anything. That’s why I’m trying to go to another area to work!!!! Hello.

So my question is... do I ignore the text and what do I say when or if they ask In person? Or do I privately text back saying I don’t have any money to give not even $10 at this point in time? What do I do? Because I know they’re expecting it. Each boss would get over $300 each gift card if we all gave money.