(16)Therefore, action at Union level is necessary in order to address the position of credit purchasers and credit servicers in relation to non-performing credit originally granted by credit institutions. However, this Directive is without prejudice to the rules of Union and national law governing credit origination, including in cases when credit servicers can be considered to engage in credit intermediation. This Directive is also without prejudice to national rules imposing additional requirements in respect of a credit purchaser or a credit servicer as concerns the renegotiation of the terms and conditions of a credit agreement.