Medical aid rejects account when it should be paid

<p>I have followed procedure and sent through the request for auth number within the allotted time, but the medical aid keeps rejecting the account stating no auth when I have ref number and everything and every time I send an email with the account and ref number it just keeps getting rejected stating no auth. they do not read their emails and then state the account is stale when they have not done the work on their side. I am tired of working with a medical aid that does not do their side of the work and then blames us for not doing the work and refuses to pay the accounts. </p>