My provider saw a patient with Humana insurance in May of this year. I verified that the insurance was active at the date of service. We received payment from Humana. I have just received a refund request from Humana for that dos, stating that the member was not covered at time of service, because member did not pay their premium for that month. Are we liable to refund that money to Humana? or is it the members responsibility with Humana? Please help! Thanks