Poor service

I was advised I'll forfeit benefits of the old contract in order to upgrade. Indeed, no provision of benefits was made the following month while I waited for the delivery of the package. Ram returned my package back to vodacom, who unilaterally cancelled the upgrade and then reinstated the old contract. By then, I had no access to their services.

I immediately contacted them to dispute the reinstatement. They have not returned to me, despite promising to. For a year I've been sent from pillar to post. Some helpful agents will "escalate" my query but no one from backoffice is giving feedback. ICASA says this is outside their scope, where do I go from here?