Crooked Teeth and orthodontics treatment

Good day.
My daughter has visited the same orthodontist twice to determine whether she qualifies for NHS braces. She has been denied both times because she is on the brink of eligibility. She struggles to brush her teeth since they are so crooked, and occasionally she complains of pain from the crowding. We went to the dentist to request a second referral to an orthodontist, but they rejected us. However, I believe she might be accepted in some settings. if anyone has had a similar experience, please let me know. Cheers!