93 Finally, I note that there is an unresolved issue raised in recent single judge decisions of this Court as to whether s 477(2B) applies to an agreement between a liquidator in that capacity and a firm of solicitors: Jahani, in the matter of Ralan Property Services Pty Ltd (receivers and managers appointed) (in liq) [2023] FCA 738 at [36] to [37] Stewart J referring to Frigger v Kitay (No 2) [2020] FCA 497; 143 ACSR 655 at [47] to [51], (Charlesworth J); cf Lewis (liquidator), in the matter of Concrete Supply Pty Ltd (in liq) [2020] FCA 841; 145 ACSR 459 at [20] (White J). The plaintiffs did not raise this issue on this application and proceeded on the basis that approval was required, and that it should be granted nunc pro tunc. I will approach this application with a view to framing any orders made under s 477(2B) with the qualification that such orders, if made, are made to the extent necessary. On the approach taken by the plaintiffs, it is not necessary to determine whether entry into the costs agreement requires approval under s 477(2B) of the Act.