I NEED A VET! WE CAN'T AFFORD THE VET BILL IN FULL!?

We've taken our dog to several animal hospitals including SVA, Banfield, and Southgate Animal Hospital. The bill has been between $600-900 and we just cannot afford it, especially with the $300 we've had to pay for office visits. If anyone knows of a veterinarian in Glen Burnie, Md area or Waldorf, Md area that does payment plans, please let me know!! She needs stitches right away. We have already applied for the CareCredit or whatever it is and we were denied. We don't have any other options and we do not want to get rid of her and we definitely do not want to have to put her down. Please Help!