280Moreover, the Commission did not call into question the applicant’s argument that most of its private creditors, like AAAS, did not enforce their claims or adopt other protective measures during the period concerned. Although the Commission criticises the applicant for not having shown that those other private creditors were in a situation comparable to that of AAAS, that same criticism may be raised against the Commission itself, since it has not shown that the four creditors which it mentioned in the contested decision were in a situation that was comparable to that of AAAS. According to the case-law, it is for the Commission to demonstrate that the conduct of a public creditor did not satisfy the private creditor test and that, accordingly, it granted an advantage (see, to that effect, judgment of 20 September 2017, Commission v Frucona Košice, C‑300/16 P, EU:C:2017:706, paragraph 29).