Telkom service dismal - LTE and contact centre / handling of cases logged

I was sold a 24 month data contract (5GB) based on misrepresentation on what I would receive - router delivered after 26 Nov 2018 (Order ********** ). I tested the data link with the router - it was useless for purpose sold. I registered cancellation of contract within period allowed on 5 Dec '18. Call centre agent (after half an hour waiting) said she registered cancellation - but agent refused to give reference number. I went to Telkom shop 16:00 same day and was given case no 2 ********** . They refused accepting return of device at that shop, requiring me to travel many kilometers. Advice was to wait several days before doing so. Also registered enquiry on Telkom app 5 Dec '18 - no response until 2018/12/11 15:03 when agent insisted by email that personal info be provided in open email before he / she would address query. No response to objection against this unacceptable business practice. After no response or progress I phoned call centre again 11 Dec.'18. Had to wait on line for about 30 minutes - call duration 40 minutes from 11:22. Call centre agent checked and informed previous case number ********** 9 was just closed - without my consent or any feedback. I was told a new case was opened (after much waiting) case no 2 ********** . I was promised feedback within 2 to 24 hours. After 48 hours still NO response. How on earth can a business hope to survive with such service? Please Telkom up your game for all customers. Telkom's data service was tested and found unreliable and most of time when working dismal data speeds absurd for so called LTE service. (This was tested and confirmed several times below 1 Mbps. Impossible for use for most purposes.) Please Telkom stop wasting my time! Confirm cancellation of my contract without further delay and BAD service - I want to return the router asap.