Internet inhibited for no reason

Put sim card into a new phone, everything works fine except mobile internet. Call centers say it isn't inhibited, people at the shops say they either don't know how to fix it or that I must phone the call center to get it uninhibited. The vicious cycle continues... In the meantime I pay far too much money for data bundles I can't even use. Would appreciate it if a competent (if any) at Vodacom could either uninhibit my internet or just cancel my contract, I can't be bothered to struggle with this anymore.