Without Internet for 2 weeks

In the first week of April a consultant phoned me to upgrade my data contract. I asked if there is LTE in Adelaide and she said yes. When I received my LTE router I immediately contacted Telkom to cancel my new contract as there is no LTE . In the meantime they switched my new sim card (for the LTE) and since 13th of April I am without Internet . I was reporting this on the Telkom Facebook messages and all answer that I get is that the query is send to the relevant department to be resolved. No feedback from any consultant or anybody. I also asked that I want my old contract back, they must not charge cancellation fees when it is done, as this was reported in a weeks time. When I try to report this at the call centre they said I must go to a store and the nearest store is 240 km away from me. This is a Telkom staff member/s fault. Really terribel customer service. This is not my first complaint of customer service. The products itself is great, but the service!!!!!. Can somebody please look into my query