Prisca was oblivious to the fact that the hospital debt was far more than she imagined. While Audrey's mother was still alive, the doctor felt pity for them, because Georgia had the cancer but not enough money to treat it, so he arranged a contract which the hospital agreed.
The contract stated that Georgia would still be able to get the chemotherapy shots, as long as she signed the contract stating that the duo would pay whenever they get the money. Unfortunately, Goergia didn't get better, and she died unexpectedly, leaving Audrey to work her ass off to pay the debt.
Audrey couldn't control how things happened, all she came up with to solve the problem at hand was to take one step at a time, she was no robot, and the only way to get out of her problems is facing them.