Can't received any incoming calls - 2nd time this has happened with no response

We logged a fault on Thursday indicating that we can't receive any incoming calls on our Vodacom devices and we indicated that my husband has his own Business which makes this extremely frustrating. Yesterday I phoned in to log another fault as nothing was being done and the customer service lady said she would log a fault for us and send me an sms with the reference number. Nothing was received. I phoned in this morning again and was told that Vodacom themselves were experiencing network issues. Can someone please have a look as to why Ontdekkers Park doesn't have any Vodacom signal? Looking forward to your urgent response.