In addition, provision should be made for the possibility of engaging, in good faith, in the out-of-court dispute settlement of such disputes, including those that could not be resolved in a satisfactory manner through the internal complaint-handling systems, by certified bodies that have the requisite independence, means and expertise to carry out their activities in a fair, swift and cost-effective manner. The independence of the out-of-court dispute settlement bodies should be ensured also at the level of the natural persons in charge of resolving disputes, including through rules on conflict of interest. The fees charged by the out-of-court dispute settlement bodies should be reasonable, accessible, attractive, inexpensive for consumers and proportionate, and assessed on a case-by-case basis. Where an out-of-court dispute settlement body is certified by the competent Digital Services Coordinator, that certification should be valid in all Member States. Providers of online platforms should be able to refuse to engage in out-of-court dispute settlement procedures under this Regulation when the same dispute, in particular as regards the information concerned and the grounds for taking the contested decision, the effects of the decision and the grounds raised for contesting the decision, has already been resolved by or is already subject to an ongoing procedure before the competent court or before another competent out-of-court dispute settlement body. Recipients of the service should be able to choose between the internal complaint mechanism, an out-of-court dispute settlement and the possibility to initiate, at any stage, judicial proceedings. Since the outcome of the out-of-court dispute settlement procedure is not binding, the parties should not be prevented from initiating judicial proceedings in relation to the same dispute. The possibilities to contest decisions of providers of online platforms thus created should leave unaffected in all respects the possibility to seek judicial redress in accordance with the laws of the Member State concerned, and therefore should not affect the exercise of the right to an effective judicial remedy under Article 47 of the Charter. The provisions in this Regulation on out-of-court dispute settlement should not require Member States to establish such out-of-court settlement bodies.