Harassed by consultant because i refused to upgrade my contract

I just received a call now from a consultant called Claude trying to shove down a contract/upgrade down my throat and when i told him i need time to think, he became persistent with the deal. He then cut the call. Is this the caliber of consultants that Vodacom recruits these days? Where you harass customers till they are forced to approve a deal? If this is the sort of treatment i should be expecting from Vodacom, kindly cancel all 3 contracts that i have with Vodacom. i received the call at 13.18 from ***. im sure all your calls are recorded, so please go have a listen and deal with the consultant accordingly.