Incorrect information provided and unacceptable Service

I currently have a contract home Router at Telkom on 40GIGs of data Deal since September 2017 last year. In December 2017 Telkom was running a special on the same router for 80GIGS for R360.00 .

I Contacted Telkom call center on the 8th December 2017 , the agent finalized the deal with me and to commence on the 1st January 2018 on the 80GIG package upgrading my current package .

To my surprise my package remained at 40Gigs of data start 1st January 2018.I then contacted Telkom and was informed the deal ended in December and can no longer be offered as well as the 40Gig deal I currently have was a special for September and cannot upgrade my package to another special.

For the mere fact that i was not informed by the agent at first pointof contact that this in not possible and incorrect information was given and agreed apon. It would only be fair that I be upgraded to the 80Gig package . I am very unhappy with the service provided as it in essence was not my fault that the product was sold incorrectly to me. The last communication with Telkom is that the deal as ended and cannot be sold to me they apologize , i am not happy with the response and need this matter to be resolved asap , or Telkom can rather take their router, cancel my contract and take my business elsewhere!!!

Please Help