Low cost or free vet services for kittens in the South Hills

My 17 yr old daughter and her boyfriend found a stray kitten in May. She ended up at my house in June. She is a beautiful tuxedo kitten. Around the end of June she was experiencing signs of an ear infection i called a ton of places and the only vet who could see her was Bethel Park Animal Clinic. They did confirm she had an ear infection and treated her with a one time treatment that said lasted 4 weeks. She never really stopped shaking her head but it was definitely getting better. Until recently she has been shaking her head and scratching her ears again. Today she has the coffee grind looking specs in her ears again. My daughter called the vet and basically they said she needs to bee seen again and its gonna cost another $250. They never said this was gonna happen every other month. Ive never owned a pet before and I have no idea what to do. I cant afford to be taken advantage of because im uneducated in kittens. They took her out of the room while they gave her the ear treatment so I have no idea what was actually done. Im trying to educate myself as much as possible but i need help and advice. She still needs spayed and all her shots, bloodwork?? Any recommendations would be greatly appreciated! Again low cost or free services please. I know its asking alot but you never know if you dont ask thanks 😊