Heinously High Veterinarian Bills

This year for my birthday I am reluctantly asking for your help!Early this morning (9/23) my dog Oliver was unfortunately hit by a car. His left hind leg is immobile and seems to be in a lot of pain. He cannot stand on it and whines when he licks it. I've consulted multiple veterinarian clinics in southern NH and none of them offer any sort of payment plan or billing option besides opening a line of medical emergency credit which I was denied for. I've made an appointment for him this friday (as soon as I could get in) . I was approved $150.00 from a local charity but that will barely get our foot in the door. I was estimated about $300.00 for the initial visit and x-rays. This does not include any medications or surgery if required. He's is literally like my own child and I would do anything for him so I really had to swallow my pride on this one. I absolutely hate asking for help and I am beyond embarrassed to do this. I would be eternally grateful for any donations made no matter how small. I understand times are hard for everyone and appreciate all of your help! Thank you!