MR Edson Ravhambelani is being forced to pay for a cell phone he doesnt want by Telkom

I went to a Telkom mobile shop at Southgate to do an upgrade on my free me contract on the 7th of September 2018. The lady who was helping me called Mphete handed me a tick sheet with all the contract information and conditions to sign and tick where applicable and i did so. After that she brought the cellphone which was a Samsung Galaxy A6+. She handed the cell phone to the technician to open and check if it with me before i accept it. As soon as she opened the sim slot and even being suprised herself she said to me this cell phone takes only one sim card. I then refused the phone right away on the sport that i do not want a cell phone that takes only one sim card as i am using a galaxy J7 prime that takes two sim cards. The sales lady called Mphete that was helping me tried to force me to accept the cell phone until we escalated the issue to her boss. Her boss whose name is Lebo Billy took the cell phone back from me the following day on the 08th of September 2018 after i explained what happened. He also said to me we cant force you to take a cell phone that you do not like. I asked him to check for the same cell phone that has dual sim in their store room and also from their supplier and they did not find anything. I asked if they have a Galaxy J8 which they also said they don't have. I also asked them for a Galaxy J7 duo and they found it in the store room and i said i will take it. Lebo Billy then said to me that its better we wait for this process of reversing this process of the Galaxy A6+. Then he did everything on the computer and i received a reference numben through an sms then i left. On the 13 of September 2018 Lebo Billy called me and said to me unfortunately i am still liable for that cell phone because i signed and completed the tick sheet and everything was explained to me. I told him i cannot accept the cell hone that i do not want. So now he is forcing me to take it back.