A Community clinic that says it doesn’t turn anyone away for inability to pay, just turned me away for inability to pay.

I’m (40m) unemployed, and looking for work. I am in Minneapolis MN. The ping pong ball and l sized lump on my gums and 3 damaged teeth don’t seem like the kind of thing I can put off dealing with any longer. A loved one payed for a minute clinic to give me antibiotics like 2 weeks ago, but the lump stayed the same size and when the antibiotics ran out the pain came right back.

I’ve been looking at trying to get Minnesota care or something but I can’t sign up online, it says I need to make an appointment to talk to someone. I made an appointment for June 5th do l to do that at the community clinic that turned me away. I’ve read that an access can turn life threatening very fast. I don’t want to go to the emergency room and get a bill of who knows how much to get antibiotics that won’t fix the problem. I’m not sure what to do at this point.

Edit: I should have specified it was a dental clinic