Cancellation of service

I am trying to cancel this contract since October 2017 and would like all my invoices refunded.

I did an online order in the beginning of September for the Big deal of the month which was a R139 for 11GB of data and a mifi router. When I finally received my package from the couriers it was a Huawei B315 router and a 20GB deal, NOT what I ordered. I called Telkom to cancel the contract deal and for the couriers to collect the package.

The couriers collected the package 3 days later (+- 1 October 2017) but Telkom has still billed me R423.70 for Sept/Oct and R299 for Nov and R299 for Dec.

Zanele from online store originally dealt with this package of mine.

I've called many more times (03/10/2017@16h50, 05/10/2017@15h40, 01/11/2017@08h20) and spoke to many consultants (xolile mdanda, nobesuthu, lihlithemba) trying to cancel this contract. I then went to 2 different Telkom stores (Waterfront and Canal Walk) and spoke to Zuhair Jacobs and Kyle Buckenld and they to have sent emails to the necessary departments to try and cancel my contract.

What else do I need to do to cancel a contract and refund my money for a device and service I've NEVER used!