It is hereby ordered that the order so appealed from is unanimously affirmed without costs.

Memorandum: Respondent father appeals from an order that, inter alia, denied his application seeking to vacate an order entered upon his default in which Family Court determined that he willfully violated a child support order. The determination whether to vacate an order entered upon a default is left to the sound discretion of the court (see Matter of Troy D.B. v Jefferson County Dept. of Social Servs., 42 A.D.3d 964, 965 [2007]), and we conclude that the court did not abuse its discretion here. "Pursuant to CPLR 5015 (a) (1), a court may vacate a judgment or order entered upon default if it determines that there is a reasonable excuse for the default and a meritorious defense" (id.). "Although default orders are disfavored in cases involving the custody or support of children, and thus the rules with respect to vacating default judgments are not to be applied as rigorously in those cases ..., that policy does not relieve the defaulting party of the burden of establishing a reasonable excuse for the default or a meritorious defense" (Matter of Strumpf v Avery, 134 A.D.3d 1465, 1465-1466 [2015] [internal quotation marks omitted]). Even assuming, arguendo, that the father established a reasonable excuse for his failure to appear for the trial based upon allegedly confusing correspondence from petitioner mother's attorney with respect to whether the mother had withdrawn her petition, we nevertheless conclude that the father failed to establish a meritorious defense. "In order to support his claim of a meritorious defense, the father was required to set forth sufficient facts [or legal arguments] to demonstrate, on a prima facie basis, that a defense existed ..., but he failed to do so" (id. at 1466 [internal quotation marks omitted]). The father repeated arguments in his affidavit that had been unsuccessful in prior support proceedings, i.e., that he received Social Security benefits and that he was unable to work. We conclude, however, that he failed to establish his inability to work, and his conclusory assertions were not sufficient to establish a meritorious defense (see Matter of Commissioner of Social Servs. v Turner, 99 A.D.3d 1244, 1244-1245 [2012]).