Bad Customer service RC

On the 15 June I wrote a review about a cancelation that I made in March. I have being debited every month for a router that was collected and I keep on calling Mondo for my refund. After my review on the 15 June, Mondo team promised to get back to me. But to date I have not received anything from them. I am calling almost everyday and I still don't have the answers. Yesterday I called as I wanted to speak to one of the team leaders but I was told by Siyanda that, the team leader by the name of Provesh will call me as she was busy. I guess she was busy the whole day. This is the answer that I have being receiving from March to date when I want to speak to a team leader. Mondo is the worsed company that I have ever seen in my life, how can a customer be debited for months and no one wants to take accountability. They have the nerve of telling lies to the bublic that one of their team members will get back to me. How long does a cancelation take? I was told that 7-14 days but with mine is 4 months.