11.Payment
(a) From the start date of this agreement until February 29, 2016, April agrees, as a joint and primary obligor of Participating Patients, to make payment to the Hospital by wire transfer within a yearly average of 45(forty-five) days of receipt of a finalclaim invoice. From March1, 2016 onward, April agrees, as a joint and primary obligorof Participating Patients, to make payment to the Hospital by wire transfer within a yearly average of 30 (thirty) days of receipt of a final claim invoice.Upon April’s failure to make such payment, the Hospitalshall be entitled to directly charge the relevant Participating Patients, or to demand them to make payment to the Hospitalin cash and/or by credit card, in any manner as the Hospitalmay deem appropriate.
(b) For all late payments, the discount shall be revoked and April agrees to pay the Hospital an interest fee at the rate of 1.5% per month on the due and unpaid amount.
(c) The Hospital acknowledges that April cannot be held responsible for payment of expenses which were not authorized by a GOP.