Mbola was sent packing for breaching camp rules after smuggling a third party in the team hotel and has since been spotted in Lusaka with the rest of the Chipolopolo in Namibia.
It is unclear whether the 2010 Africa Cup of Nations youngest defender made the trip to Namibia from South Africa.
Vandenbroek has made it clear that he will not tolerate any form of indiscipline in the Chipolopolo camp.
The Hapoel Raanaana defender was given an unexpected recall by Vandenbroek following the departure of Wedson Nyirenda as coach.
Nyirenda had also set a strong disciplinary that did not go down well with some fans but may feel vindicated given the Mbola case.
Mbola has been conspicuously missing from Chipolopolo training with no official explanation yet.
Zambia plays Namibia tomorrow in a crucial Cameroon 2019 Africa Cup of Nations qualifier at the Sam Nujoma Stadium.
Sources in Windhoek have confirmed Mbola’s ejection from camp after having smuggled a third party in camp.