Vodacom you frustrate me

Vodacom contract. Last 2 weeks I cannot receive calls or sms. All else on my phone is fine. Notified Vodacom on Wednesday 13 Dec and today 18 Dec still unable to receive calls or sms ! To phone your helpline is a painful half an hour session where these people do not check your history of service requests, they just always go through the same very long line of press this and answer that. Hateful experience and still my phone cannot receive calls.