Bad customer service and misleading sales to customers

I have been calling vodacom since Monday about a contract that was sold me to *********ly by the sales agent who **** about me getting a voucher and account debited month of Feb and my account was debited today and they have been saying they are going to escalate with the company and only to find out this morning when I followed no escalation email sent to third party sales company Mondo. This is really unacceptable and we are not even provided reference numbers to track because they know that they lie to us over the phone and you are unable to trace.