I don't do anything with money or credit cards on my smartphone, only my home desktop computer.
So, I only occasionally get a spam text, and I immediately delete. If I got any that asked personal questions like that, I would block that number for sure.
I haven't received any spam emails asking for political money either, I think shortly after I donated to a party I received one email that said I could unsubscribe from any other communications, I did, no issue at all since. Hope you can stop these texts, does not sound good at all, good luck.