No contact details available for Ranburg walk in centre

How is it possible that a company as big as MultiChoice does not publish telephone contact details for this centre. The only number available is ***, and this is a general inquiry number where an assistant can be based in Cape Town, Durban or PE and has no way of connecting you to a Joburg branch. Furthermore ,most of these assistants work from home currently and cannot transfer you to a team leader. I have chatted to at least 20 different consultants and no one has been able to help me get hold of the Randburg branch. I have been receiving the same E136 error for days now , the installation team they assigned has been at my house twice and the installers say it is an error from head office, and the phone assistants insist it is an installation error. I have been pushed from pillar to post and the only way to sort this out ,it seems, is to cancel my subscription.