Bad Service with Telkom

I went to a Telkom store to open up a new mobile account as I was at another service provider. I eventually had to open up a month to month data/sim contract, because the employee in the store told me that I cannot get a contract with a device as the device will no longer be manufactured. So I opened up the month to month data/sim contract and the employee that helped me said that I can change the contact at anytime to a fixed contact with a device. I had the contract for one month when an employee phoned me to discuss the deals they had. Here he told me that the phone that I wanted is in stock and that it will still be manufactured. I discussed the details to open up the account and asked the employee to put this new contract on the mobile number that I currently have, which he did not do. Now I am struggling to put the new contract on the number that I am using. Now I have to switch my month to month to data/sim contract to prepaid to transfer the number to the new fixed contract. Now I am informed that the switch from contract to prepaid will take up to 21 days, resulting in me having to pay for to contracts because the employee who helped me with the new contact did not do as I asked. The service and amount of struggling that I am experiencing with Telkom makes me regret my decision to join them, and also convinces me to not ever recommend them to any one else.