poor service ..service failure

i was offered a mobile wiifi telephonically and was missed informed, i was advised that i would received 10gB of data and 500mgb night and 500 for the day and pay R139.00pm only to find out that its only 500mgb day and night was missinformed about how it works and its data as well, after i took the contract and product was delivered @my place was then a totally different data only lasted for 3 days and when i went enquire at a Telkom store i was advised that my data has depleted, i then requested to cancel my contract as it not going to work for my kids i was advised to call the contact centre for Telkom sales 10213 i spoke with a lady by the name of Thobile in Jorbug branch on the 24th of October 2017 to request cancellation, i gave her all details and my reasons for cancelling this contract spent almost 1:30 hour on that call with her and she promised that she was logging a case for me for cancellation to be done and will be sending a courier company to come and collect the router and she even confirmed that i will not be charge any penalties since its still within the cooling off period was day number 5 i had received this and she advised that i can use her name as reference and i should wait 48hours for an outcome, then i waited no one called me , i then call back on 27th October and i was transferred 7 times no one seems to know what’s was happening they cant pick up any calls i made or any case logged what’s so ever, i then got to speak a guy by the name of Ntuthuko also from the Durban branch now when i was transferred the 8th time he then wanted to transfer me back online and i then said no i really need to speak to a manager hear to get assistance and he said no my manager will tell you the something that you need to be transferred back the 9th time i insisted and he said no you will not speak to him , I ask for Managers name as i felt that they care for their client if you want to speak to them you being told that manager SHELDIN DIKSON cant take your call after insisted 4X , i need to know if this is the kind of image Telkom is portraying or painting to their new client, i have 3 new contract with them and wanting to close my latest contract because of the wrong information provided by their sales consultant ..now im trying to cancel this wiifi thing coz its not going to work for my children and im being transferred from pillar to post... im really unhappy about the contact centre of Telkom and Telkom sales consultants, my other 2contract were app**** for @the Branch which i received a Top service from a staff member Junaid. please resolve my query I WANT MY LATEST CONTRACR TERMINATED WITH NO PENALTIES since i called on day 5 of receiving your Product.