Misleading promotion and bad attitude of consultant

I bought R110 airtime from vodacom last week , received a message that I have been given R110 extra airtime that was not there I, called vodacom and I never got that airtime. Today I bought the same airtime received message of extra airtime, I checked there's no extra airtime I received. I called vodacom client service and someone dropped the fone on my ear from their side. Fulfill your promise to your client and stop sending us false messages that we have extra airtime