Poor Customer services

I have been staying in one of the premiers of Trueprop in Randburg 352 corner Oak and Dover , apartment on oak, and i moved out end of June 2017. When applying for a new lease the agency had advised me that the above company has blacklisted me for not paying yet and still owe them still to date, according to the system. I had moved out of the premiers 3 years ago and no one had even made contact with me, my work email address and contact remained unchanged. This is so ********* were company exploit us as tenants and when i left the premiers i had official served my one month notices, on one of the documentation that i had received from the company/summons of arrears due which someone **********ly initial it on my behalf, i am not able to get approved for my new lease. Honestly speaking this is bull and they claim that they made contact with me and no luck. What **** me the most is i am not able to get a company of my last email advising the company of my notice. No one wants to take accountability and my rights are being exploited and i will be taking this better to the ombudsman for further assistance since my rights are being violated.