Very uhappy

I was involved in an accident on the 31 December, 2017. I was unconscious for a week. during this time with me being unconscious family members did not give the correct information to the hospital. When I woke up and was able to think clearly I gave Medshield the invoices for them to be paid. There is a claim outstanding for practice ********** dated 31/12/2017, amount R17,972.99/ ********** 8 amount R6356.42. The account is overdue due to the fact my family gave the wrong information. I have escalated the accounts still no luck. very unhappy been submitting this claim for the whole of last year. I still have funds available and they are not paying this account!! I am black listed due to this please assist.