Vodacom poor service

Vodacom has not been able to allocate my payment resulting in a suspended service. We have been to 4 different Vodacom outlets for assistance with no luck. Every time we complain, they e-mail the proof of payment to the Vodacom call center with a promise that the service will be re-instated within 2 hours. My service is still suspended after 15 days. 4 days ago I have sent an email to the Ceo who did not even bother to respond. This is indicative of the poor service culture of Vodacom.