Pathetic service

I have a contract with Vodacom but the last 2 months I haven't received the airtime or data that states in my contract. This morning I have been trying to sort it out via phone call for the last 2 hours, but the line keeps getting cut off and no one is trying to help. Vodacom is the most expensive service provider but the actual service we receive from them shocking. Think it's time I switch to CellC or MTN.