Telephone sales

31/7/2023 telly sale lady phone. 20G data to 50G data. Due to complaints about data prices. I asked het more than once will the price be the same and the contract the same time, because when time is done want to cancel. All reply back yes. Sms received 4/8 not the truth. Received 10/8 invoice all numbers on account is higher. Numbers not even in question. About R400 more than prevoius month. 10/8 email was send no respons back on complaint. 082135 customer service not user friendly because you speak to a robot.