Legal ******ion from ADT security company

My name is Luthando Pantsi and I am a client of ADT security company. The problem I have with the company is the legal ******ion that they are doing. They are billing me R 139 a month, according to them they are saying they made more than four visits to my house in the month of August. My problem is there is no evidence in my house that the security guard visited my house for monitoring, so how am I paying for something where there is no concrete evidence that the security guards were there? This is Legal ******ion because I am paying them R 465 on a monthly basis and add to that they are charging me extra R 139 on top of that.