Wrong upgrade deal

A guy called Sashin he called me and said my contract was due for an upgrade,ok i was willing to upgrade,as he said if i upgrade it comes with 1 tablet for free since its a black Friday special,however delivery guys called me to my surprise its 2 tablets and i have to pay R239 for each,that was not the agreement,i haven't received the phones as yet,im really dissapointed and need this to be sorted out ASP.when i called today the guy who assisted me said today i must reject it because its not what i ordered,the name of the guy was Themba he was very helpful.however I want Sahim who sold the wrong deal to me to be delt with.and all calls are recorded so they can still go back to the calls.