Waiting call back on query

I upgraded my nr ********** 123 more or less 2 months ago. Happy with the option of 2gig per month, minutes and sms. My son is using this and he informed me that he is getting messages stating that the nr is R2999 out of bundle I contacted Vodacom on Saturday 21 st October 2017 to query this. I spoke to Harriet at 11h00 and she explained the contract is an open line. I cannot recall that this was explained to me when I did the upgrade. We wanted the same as on my nr ********** 105. She was very helpful and transfered my call to the upgrades department. I spoke to Charmaine at 11h07 and I explained my concern on which she said that they will get the recording of when I upgraded and some one will phone me back Monday or Tuesday. I still haven't recieved a call. I explained to Charmaine that I will not pay the out of bundle amount as this was not what I wanted. I need someone to phone me regarding my query as soon as possible to resolve this issue.