Telkom selling dysfunctional Voicemail on Fixed LTE.

Due to Telkom's announcement that it is terminating its Fixed Line and ADSL business we decided to migrate to Fixed Wireless LTE. Firstly the migration process was a disaster and took Telkom about a month to finalise. Now we have voicemail on the line but no notification as to when there is a voice message and no way to actually access the menu and or listen to the messages. I have called 10217 a number of times and they keep saying to dial 181. But 181 does not work, only an engaged tone. This is doing a huge amount of damage to our business in that clients leave voice messages that we are not made aware of and secondly have no way of accessing. It would cause less damage by not having voicemail at all. But they do not seem to care at all. I have spoken to another Telkom customer and he has the same issue. So it is not something on our side. Telkom is knowingly marketing a product that does not work.