When the amount of the advance payment is less than 80% of the amount calculated in accordance with the provisions of articles R. 2191-16 to R. 2191-18, the reimbursement of the advance payment must be completed when the amount of the services performed by the contractor reaches 80% of the amount, including all taxes, of the services entrusted to him under :
1° Of the purchase order in the case of a framework agreement with purchase orders that does not include a minimum fixed in terms of value ;
2° Of the minimum amount in the case of a framework agreement with purchase orders including a minimum amount fixed in terms of value.
In other cases, if the contract is silent, the advance is reimbursed in full when the amount of the services provided, including all taxes, reaches the amount of the advance granted.