Poor service

Bankmed does not offer customer service. The medical practitionars request payment upfront as they do not get paid. I then paid upfront and to date after sending multiple emails with the supporting documents i have not been refunded for a procedure i obtained approval for weeks in advance. There is no response to emails and nobody calls to discuss any items. The second claim has been rejected as the person who opened it clearly cant read. The date stipulated is correct and not in the future but nobody. will respond to me to resolve.